The Bible speaks of God’s promises in 2 Corinthians 1, in 2 Peter 1, and in Hebrews 10.
20 For all the promises of God in him are yea, and in him Amen, unto the glory of God by us.
In 2 Peter 1:4:
4 Whereby are given unto us exceeding great and precious promises: that by these ye might be partakers of the divine nature, having escaped the corruption that is in the world through lust.
In Hebrews 10:23:
23 Let us hold fast the profession of our faith without wavering; (for he is faithful that promised;)