“Know therefore that the Lord your God is God, the faithful God who keeps covenant and steadfast love with those who love him and keep his commandments, to a thousand generations,” (Deut. 7:9)
Great is thy faithfulness!
The wonderful hymn “Great is Thy Faitfulness”, written in 1923 by Thomas O. Chisholm, starts off with. “Great is Thy faithfulness, O God my Father; There is no shadow of turning with Thee; Thou changest not, Thy compassions, they fail not; As Thou hast been Thou forever wilt be.” He got it exactly right! The Bible states this promise repeatedly from cover to cover.
“Your steadfast love, O Lord, extends to the heavens, your faithfulness to the clouds.” (Psalm 36:5)
New every morning
“The steadfast love of the Lord never ceases; his mercies never come to an end; they are new every morning; great is your faithfulness.” (Lam. 3:22-23 ESV)
Therefore
“If we are faithless, he remains faithful— for he cannot deny himself.” (2 Tim. 2:13)
“God is faithful, by whom you were called into the fellowship of his Son, Jesus Christ our Lord.” (1 Cor. 1:9)