God never changes, He is immutable.

Psa 90:2 KJV – 2 Before the mountains were brought forth, or ever thou hadst formed the earth and the world, even from everlasting to everlasting, thou [art] God.

Heb 13:8 KJV – 8 Jesus Christ the same yesterday, and to day, and for ever.

Mal 3:6 KJV – 6 For I [am] the LORD, I change not; therefore ye sons of Jacob are not consumed.

Isa 40:8 KJV – 8 The grass withereth, the flower fadeth: but the word of our God shall stand for ever.

Mat 24:35 KJV – 35 Heaven and earth shall pass away, but my words shall not pass away.

Isa 40:28 KJV – 28 Hast thou not known? hast thou not heard, [that] the everlasting God, the LORD, the Creator of the ends of the earth, fainteth not, neither is weary? [there is] no searching of his understanding.

Isa 44:6 KJV – 6 Thus saith the LORD the King of Israel, and his redeemer the LORD of hosts; I [am] the first, and I [am] the last; and beside me [there is] no God.

Rev 22:13 KJV – 13 I am Alpha and Omega, the beginning and the end, the first and the last.