'Strongly' in the Bible

The following were the chiefs of David’s warriors who, together with all Israel, strongly supported him in his reign to make him king according to the Lord’s word about Israel.

"I chose your son Solomon to be the one who will construct my Temple and my courts, because I have chosen him to be a son to me, and I will be a father to him. I will establish his kingdom forever, assuming he remains strongly committed to carry out my commandments and ordinances, as he is doing today.'