'Loyalty' in the Bible

Know that Yahweh your God is God, the faithful God who keeps His gracious covenant loyalty for a thousand generations with those who love Him and keep His commands.

“If you listen to and are careful to keep these ordinances, the Lord your God will keep His covenant loyalty with you, as He swore to your fathers.

So he said: "Let me hide my face from them. I will observe what their end will be, because they are a perverted generation, children within whom there is no loyalty.