Like fresh water on a hot summer’s day

Date: 6 July 2025 | Pre­a­cher:
Series: | Bible text: Isai­ah 12
Hint: This ser­mon has been machi­ne trans­la­ted. Plea­se note that we can­not accept any respon­si­bi­li­ty for the accu­ra­cy of the content.

Just as fresh water refres­hes us on a hot day, God’s sal­va­ti­on revi­ta­li­ses our lives: In Jesus we find sal­va­ti­on, new life, deep joy and the power of the Holy Spi­rit – a source from which we can draw daily.


A hot summer’s day. The sun is bla­zing, the air is still and the thirst is get­ting more and more urgent. In moments like the­se, the­re is hard­ly any­thing more pre­cious than a glass of cool, fresh water. It revi­ta­li­ses, refres­hes and gives us new strength – and some­ti­mes we feel reborn when this water breaks through our dry­ness. It is pre­cis­e­ly this image that the Bible takes up when it speaks of sal­va­ti­on. In Isai­ah 12 it says: «You will draw water with joy from the springs of his sal­va­ti­on!» (Isai­ah 12:3 NLB). God’s sal­va­ti­on is like fresh water for thirsty souls: vital, soot­hing and ener­gi­sing. But what does this sal­va­ti­on real­ly mean – and how can it refresh our lives?

Salvation

«And in that day you will say, «I prai­se you, O LORD, for you were angry with me, but your anger has tur­ned and you have com­for­ted me. Behold, God is my sal­va­ti­on (Hebrew El Jeschua­ti); I will trust and not be afraid, for the LORD is my strength and my song, and he has beco­me my sal­va­ti­on (Hebrew Jes­hua)!» (Isai­ah 12:1f SLT).

Isai­ah 12 forms the con­clu­si­on of a series of jud­ge­ment announce­ments. The text was writ­ten at a time of natio­nal thre­at and spi­ri­tu­al decli­ne: social inju­s­ti­ce, reli­gious hypo­cri­sy and poli­ti­cal uncer­tain­ty cha­rac­te­ri­sed the coun­try. Isai­ah pro­claims both jud­ge­ment on the nati­ons and Judah as well as future hope and redemp­ti­on. The focus is on the coming time of salvation.

The key word in the­se ver­ses is «Yes­hua» – sal­va­ti­on, sal­va­ti­on, redemp­ti­on. After the death of Moses, God cho­se Joshua, a gifted gene­ral, to lead his peo­p­le. In short, Joshua’s task was to lead the Israe­li­tes from a bleak, four-deca­de desert expe­ri­ence cha­rac­te­ri­sed by death and unrest to a new, abun­dant life in the land of Cana­an – the land that «whe­re milk and honey over­flow» (Deu­te­ro­no­my 6:3 NLB). As soon as they sett­led the­re, his peo­p­le would expe­ri­ence peace and tran­quil­li­ty. How fit­ting that Joshua’s name in Hebrew is «Yes­hua», which means «Yah­weh is salvation».

Around 1400 years later, a child was born in the same coun­try with the same name – Yes­hua, Jesus. The New Tes­ta­ment shows: Jesus is the new Joshua. The old Joshua led Isra­el into an earth­ly land, the new Joshua leads all who fol­low him into the eter­nal rest of God – a new life in His king­dom. The let­ter to the Hebrews explains: «For if Joshua had brought them to rest, the­re would have been no men­ti­on of ano­ther day after­wards. So the­re is still a rest for the peo­p­le of God» (Hebrews 4:8–9 LUT).

This par­al­lel is no coin­ci­dence. It shows: God’s sal­va­ti­on has a histo­ry. It is not a pious wish, but ancho­red in space and time. God inter­ven­es in world histo­ry – first through Joshua, then through Jesus – to save his peo­p­le. Unli­ke Joshua, who could only lead to an earth­ly land, Jesus brings eter­nal sal­va­ti­on. In Him, the full depth of «El Jeschua­ti» beco­mes visi­ble. He saves not only from enemies, not only from hun­ger and thirst, but from eter­nal sepa­ra­ti­on from God. He gives true recon­ci­lia­ti­on, new life, the Holy Spi­rit and the hope of a new crea­ti­on. This means that when we «God is my sal­va­ti­on», we con­fess at the same time: Jesus is my Saviour. This is not a his­to­ri­cal relic, but a cur­rent rea­li­ty. Tho­se who ent­rust them­sel­ves to Jesus can say: I am saved – not by my own strength, but by grace.

The sal­va­ti­on that has come into the world through Jesus does not only include the sal­va­ti­on of the soul. In Hebrew, the word «Yes­hua» also encom­pas­ses phy­si­cal, tem­po­ral and holi­stic libe­ra­ti­on. God saves from sin, yes – but also from hard­ship, fear, loneli­ne­ss, finan­cial bot­t­len­ecks and bro­ken rela­ti­onships. He is a God who inter­ven­es in all situa­tions in life – not always in the way we expect, but always accor­ding to his gre­at plan of sal­va­ti­on. Ulti­m­ate­ly, this pro­mi­se will be ful­fil­led in the new world: Tho­se who can say «El Jeschua­ti» will recei­ve a new body at the return of Jesus Christ that is com­pa­ti­ble with the divi­ne world.

Joy

Tho­se who grasp sal­va­ti­on in its breadth, depth and length in their hearts can­not help but rejoice. Joy is the con­stant com­pa­n­ion of sal­va­ti­on: «You will draw water with joy from the springs of his sal­va­ti­on (Hebrew: Yes­hua)!» (Isai­ah 12:3 NLB). What a refres­hing thought on a hot summer’s day! This state­ment is remi­nis­cent of the wil­der­ness wan­de­rings during which God pro­vi­ded for his peo­p­le. Joy springs from the source of sal­va­ti­on and not from exter­nal cir­cum­s­tances. And the­se sources can be found ever­y­whe­re along the way in our lives.

Some peo­p­le take a good drink from the foun­tain of sal­va­ti­on at the begin­ning of their fol­lo­wing of Jesus. They expe­ri­ence for­gi­ve­ness of their sins and rejoice that they are now child­ren of God. Over time, howe­ver, they fall into the tempt­a­ti­on to earn God’s favour through their own efforts – a so-cal­led dou­ble jus­ti­fi­ca­ti­on. First they recei­ve the gift of belon­ging to Christ, then they think they have to earn the next steps them­sel­ves. Howe­ver, «God is my sal­va­ti­on» means that God in Jesus Christ is ever­y­thing for me: my sal­va­ti­on, my hope, my sanc­ti­fi­ca­ti­on, my wis­dom. My task is to con­stant­ly draw from the source of salvation.

Jesus says: «But whoe­ver drinks of the water that I will give him will never thirst again. The water I give him will beco­me in him a never-ending spring that flows unce­a­sing­ly into eter­nal life.»(John 4:14 NLB). In ano­ther pas­sa­ge, Jesus explains that the Spi­rit of God is the living water (John 7:37–39). The image of the «water of sal­va­ti­on» stands for deep spi­ri­tu­al rene­wal. Drin­king from the foun­tain of His sal­va­ti­on means being fil­led anew with the power of the Holy Spi­rit in fel­low­ship with Jesus. We can draw on this grace every day.

Praise

The exis­ten­ti­al expe­ri­ence of God as my sal­va­ti­on leads not only to joy, but also to prai­se. It alre­a­dy says: «[…] for the LORD is my strength and my song […]» (Isai­ah 12:2 SLT). This song, which is pla­ced in our lives through sal­va­ti­on, has the fol­lo­wing effect: «Then you will say: Give thanks to the Lord! Call on his name! Tell the who­le world what he has done. Tell ever­yo­ne how gre­at his name is! Sing to the LORD, for he has done gre­at things. Pro­cla­im it to the who­le world» (Isai­ah 12:4f NLB).

The prai­se of God thus beco­mes the motor of evan­ge­li­sa­ti­on. The pro­cla­ma­ti­on of the Good News is not a com­pul­so­ry exer­cise, but a natu­ral out­flow of drin­king from the foun­tain of sal­va­ti­on. God’s sal­va­ti­on is not just for Isra­el or the Chris­ti­an West, but for all peo­p­les. It can be said that faith in Jesus Christ is a per­so­nal, but not a pri­va­te mat­ter. The mes­sa­ge of sal­va­ti­on through Jesus Christ should reach the who­le world. When we tell of God’s deeds, his name beco­mes known among the nati­ons. The start­ing point for pas­sing on the Good News is not a theo­lo­gi­cal doc­tri­ne, but per­so­nal expe­ri­ence: God is my sal­va­ti­on. We too are cal­led to tell of God’s deeds.

«Rejoice and be glad, inha­bi­tants of Jeru­sa­lem! For the Holy One of Isra­el, who lives among you, is gre­at» (Isai­ah 12:6 NLB). In con­clu­si­on, Isai­ah rejoices in God’s clo­sen­ess – Imma­nu­el: God is with us. Yes­hua­ti is Imma­nu­el. This pro­mi­se has been ful­fil­led in Christ (Matthew 1:23) and will be com­ple­ted in the New Jeru­sa­lem (Reve­la­ti­on 21:3). An almost incom­pre­hen­si­ble truth: the God who crea­ted the stars of all the esti­ma­ted 200 bil­li­on gala­xies in one day lives among us through his Spi­rit. Com­pre­hen­si­ve sal­va­ti­on is with us. Whoe­ver can say «Yes­hua­ti, God is my sal­va­ti­on», can also say «Imma­nu­el, God is in me». This is much more important for our lives than a glass of cool water on a hot summer’s day!

 

Possible questions for the small groups

Bible text: Isai­ah 12

  1. What does the per­so­nal name of God «God is my sal­va­ti­on» mean to you? Can you pro­no­un­ce this name with deepest conviction?
  2. How does the con­nec­tion bet­ween Joshua and Jesus encou­ra­ge you in your jour­ney of faith?
  3. What expe­ri­en­ces have you alre­a­dy had with the «water of sal­va­ti­on» – i.e. being fil­led with the Holy Spi­rit in ever­y­day life?
  4. Why do we some­ti­mes tend to fall back into our own per­for­mance after con­ver­si­on – and how can we live by grace instead?
  5. What spe­ci­fic sto­ry of God’s inter­ven­ti­on in your life could you tell someone else to make Jesus gre­at – and who would you like to tell it to?