'In the Name of the Lord' in the Bible

For the Lord your God has chosen him and his sons from all your tribes, to stand and serve in the name of the Lord forever.

then he shall serve in the name of the Lord his God, like all his fellow Levites who stand there before the Lord.

When a prophet speaks in the name of the Lord, if the thing does not come about or come true, that is the thing which the Lord has not spoken. The prophet has spoken it presumptuously; you shall not be afraid of him.

Then the priests, the sons of Levi, shall come near, for the Lord your God has chosen them to serve Him and to bless in the name of the Lord; and every dispute and every assault shall be settled by them.