'Keep' in the Bible

Now therefore, O Lord, the God of Israel, keep with Your servant David, my father, that which You promised him, saying, ‘You shall not fail to have a man to sit on the throne of Israel, provided your sons are careful to walk in My law as you, [David,] have walked before Me.’

Every morning and every evening they offer the burnt offerings and the fragrant incense to the Lord; and the showbread is set on the clean table [of pure gold], and the golden lampstand with its lamps is ready to light every evening; for we keep the charge of the Lord our God [that is, the obligation we have to Him], but you have abandoned (turned away from) Him.

Hezekiah sent word to all Israel and to Judah and also wrote letters to Ephraim and Manasseh to come to the house of the Lord at Jerusalem to celebrate the Passover Feast to the Lord God of Israel.

For the king and his officials and all the assembly in Jerusalem had decided to celebrate the Passover in the second month,

since they could not celebrate it at that time because a sufficient number of priests had not consecrated themselves, nor had the people assembled at Jerusalem.

So they decided to circulate a proclamation throughout Israel, from Beersheba to Dan, that the people were to come to celebrate the Passover to the Lord God of Israel, at Jerusalem. For they had not celebrated it in great numbers as it was prescribed [for a long time].

Now many people were gathered at Jerusalem to celebrate the Feast of Unleavened Bread in the second month; it was a very large assembly.

Then the king stood in his place and made a covenant before the Lord—to walk after (obey) the Lord, and to keep His commandments, His testimonies, and His statutes with all his heart and with all his soul, to perform the words of the covenant written in this book.

So all the service of the Lord was prepared on that day to celebrate the Passover, and to offer burnt offerings on the altar of the Lord, in accordance with the command of King Josiah.