'According to the Word of the Lord' in the Bible

Therefore came all the elders of Israel to the king to Hebron; and David made a covenant with them in Hebron before the LORD; and they anointed David king over Israel, according to the word of the LORD by Samuel.

These also are the chief of the mighty men whom David had, who strengthened themselves with him in his kingdom, and with all Israel, to make him king according to the word of the LORD concerning Israel.

And these are the numbers of the bands that were ready armed to the war, and came to David to Hebron, to turn the kingdom of Saul to him, according to the word of the LORD.

And the children of the Levites bore the ark of God upon their shoulders with the staffs on it, as Moses commanded, according to the word of the LORD.