Ezk 36:26, 2 Cor 5:17, Rom 6:4, Eph 2:15
In the Old Testament, the son of David confessed that there is nothing new under the sun. (Ecclesiastes 1:9-10)
Ecclesiastes 1:9 The thing that hath been, it is that which shall be; and that which is done is that which shall be done: and there is no new thing under the sun. 10 Is there any thing whereof it may be said, See, this is new? it hath been already of old time, which was before us.
In the Old Testament, Ezekiel prophesied that God would give us a new spirit and a new heart. (Ezekiel 36:26)
Ezekiel 36:26 A new heart also will I give you, and a new spirit will I put within you: and I will take away the stony heart out of your flesh, and I will give you an heart of flesh.
If you believe in Jesus as the Christ, you become a new creation. (2 Corinthians 5:17)
2 Corinthians 5:17 Therefore if any man be in Christ, he is a new creature: old things are passed away; behold, all things are become new.
We believe that Jesus is the Christ, so we died with him, and we were raised with him, and we received a new life. (Rom 6:4, Eph 2:15)
Rom 6:4 Therefore we are buried with him by baptism into death: that like as Christ was raised up from the dead by the glory of the Father, even so we also should walk in newness of life.
Eph 2:15 Having abolished in his flesh the enmity, even the law of commandments contained in ordinances; for to make in himself of twain one new man, so making peace;