'Steadfast' in the Bible

Yet in spite of this word, you did not trust [that is, confidently rely on and believe] the Lord your God,

but showing graciousness and lovingkindness to thousands [of generations] of those who love Me and keep My commandments.

Therefore know [without any doubt] and understand that the Lord your God, He is God, the faithful God, who is keeping His covenant and His [steadfast] lovingkindness to a thousand generations with those who love Him and keep His commandments;

“Then it shall come about, because you listen to these judgments and keep and do them, that the Lord your God will keep with you the covenant and the [steadfast] lovingkindness which He swore to your fathers.