'Keep' in the Bible

Therefore, Lord God of Israel,keep what You promisedto Your servant, my father David:“You will never fail to have a manto sit before Me on the throne of Israel,if only your sons guard their way to walk in My Lawas you have walked before Me.”

As for you, if you walk before Me as your father David walked, doing everything I have commanded you, and if you keep My statutes and ordinances,

Then the king stood at his post and made a covenant in the Lord’s presence to follow the Lord and to keep His commands, His decrees, and His statutes with all his heart and with all his soul in order to carry out the words of the covenant written in this book.