'Serve the Lord' in the Bible

But the Levites will not have an allotted portion among you, for their inheritance is to serve the Lord. Gad, Reuben, and the half-tribe of Manasseh have already received their allotted land east of the Jordan which Moses the Lord's servant assigned them."

but instead it will serve as a reminder between us and you and between our generations after us, that we are to serve the LORD with our burnt offerings, sacrifices, and peace offerings. That way your descendants will not say to our descendants in the future, "You have no allotment from the LORD."'

“Now, therefore, fear the Lord and serve Him in sincerity and in truth; remove the gods which your fathers served on the other side of the [Euphrates] River and in Egypt, and serve the Lord.

And if it seem evil unto you to serve the LORD, choose you this day whom ye will serve; whether the gods which your fathers served that were on the other side of the flood, or the gods of the Amorites, in whose land ye dwell: but as for me and my house, we will serve the LORD.

And the LORD drave out from before us all the people, even the Amorites which dwelt in the land: therefore will we also serve the LORD; for he is our God.

And Joshua said unto the people, Ye cannot serve the LORD: for he is an holy God; he is a jealous God; he will not forgive your transgressions nor your sins.

And the people said unto Joshua, Nay; but we will serve the LORD.

Joshua responded, "You are giving testimony against yourselves, that you have chosen to serve the LORD." They replied, "We are witnesses!"

The people replied, "We will serve the LORD our God and obey his voice."