Jn 4:14, Jn 7:37-39, Rev 7:16-17
In the Old Testament, God promised to lead us to a spring of water. (Isa 49:9-10)
Isa 49:9 That thou mayest say to the prisoners, Go forth; to them that are in darkness, Shew yourselves. They shall feed in the ways, and their pastures shall be in all high places. 10 They shall not hunger nor thirst; neither shall the heat nor sun smite them: for he that hath mercy on them shall lead them, even by the springs of water shall he guide them.
As prophesied in the Old Testament, Jesus gave us the eternal water of life, the Holy Spirit. (John 14:14, John 7:37-39)
John 14:14 If ye shall ask any thing in my name, I will do it.
John 7:37 In the last day, that great day of the feast, Jesus stood and cried, saying, If any man thirst, let him come unto me, and drink. 38 He that believeth on me, as the scripture hath said, out of his belly shall flow rivers of living water. 39 (But this spake he of the Spirit, which they that believe on him should receive: for the Holy Ghost was not yet given; because that Jesus was not yet glorified.)
Christ Jesus, the Lamb of God, leads us to the fountain of the water of life. (Rev 7:16-17)
Rev 7:16 They shall hunger no more, neither thirst any more; neither shall the sun light on them, nor any heat. 17 For the Lamb which is in the midst of the throne shall feed them, and shall lead them unto living fountains of waters: and God shall wipe away all tears from their eyes.