2 Timothy 2:13
"If we are faithless, He remains faithful, for He cannot deny Himself."
Everyone in some way is or has been "faithless" before God. We are that way when we hate our enemy and do not pray for them. We are faithless when we do not love one another. If it was left to us, our faith would not sustain even our salvation and we would all be lost.
And yet there is a certain hope for every one who has ever called upon the name of the Lord: "He remains faithful." He who is always faithful cannot deny Himself. His faithfulness is imputed to those who will, place their trust in Him.
The Truth
“Therefore know that the Lord your God, He is God, the faithful God who keeps covenant and mercy for a thousand generations with those who love Him and keep His commandments.” (Deuteronomy 7:9)