God is faithful
“God is faithful, by whom you were called into the fellowship of his Son, Jesus Christ our Lord.” (1 Cor. 1:9)
Faithful: having faith; remaining true, steadfast in affection or allegiance; constant, loyal; having qualities of dependability and devotion.
God is abounding in faithfulness
“But you, O Lord, are a God merciful and gracious, slow to anger and abounding in steadfast love and faithfulness.”
God’s faithfulness endures to all generations
“Your faithfulness endures to all generations; you have established the earth, and it stands fast.” (Psalm 119:90)
Therefore…
“Let us hold unswervingly to the hope we profess, for he who promised is faithful.” (Heb. 19:23 NIV)
“He will cover you with his pinions, and under his wings you will find refuge; his faithfulness is a shield and buckler.” (Psalm 91:4)