'Serve the Lord' in the Bible

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

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

And Joshua said unto the people, You cannot serve the LORD: for he is a 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.