'Serve the Lord' in the Bible

Now be you not stiff-necked, as your fathers were, but yield yourselves unto the LORD, and enter into his sanctuary, which he has sanctified forever: and serve the LORD your God, that the fierceness of his wrath may turn away from you.

And he repaired the altar of the LORD, and sacrificed on it peace offerings and thank offerings, and commanded Judah to serve the LORD God of Israel.

And Josiah took away all the abominations out of all the country that belonged to the children of Israel, and made all that were present in Israel to serve, even to serve the LORD their God. And all his days they departed not from following the LORD, the God of their fathers.