'Loyal' in the Bible

Revere the Lord your God, serve him, be loyal to him and take oaths only in his name.

For if you carefully observe all of these commandments I am giving you and love the Lord your God, live according to his standards, and remain loyal to him,

You must follow the Lord your God and revere only him; and you must observe his commandments, obey him, serve him, and remain loyal to him.

I also call on you to love the Lord your God, to obey him and be loyal to him, for he gives you life and enables you to live continually in the land the Lord promised to give to your ancestors Abraham, Isaac, and Jacob."