Psalms 63:11

But the king shall rejoice - David shall come to the kingdom according to the promise of God. Or, if it refer to the captivity, the blood royal shall be preserved in and by Zerubbabel till the Messiah come, who shall be David' s spiritual successor in the kingdom for ever.

That sweareth by him - It was customary to swear by the life of the king. The Egyptians swore by the life of Pharaoh; and Joseph conforms to this custom, as may be seen in the book of Genesis, Genesis 42:15, Genesis 42:16. See also I Samuel 1:26 : I Samuel 17:55, and Judith 11:7. But here it may refer to God. He is The King, and swearing by his name signifies binding themselves by his authority, acknowledging his supremacy, and devoting themselves to his glory and service alone.

The Chaldee has: "And the King shall rejoice bemeymar Eloha , in the Word of God;" or, in the Word God; Meymar, Word, being taken here substantially, as in many other places, by the Targumist.

The mouth of them that speak lies - The mouth of those who acknowledge lying vanities, that worship false gods, shall be stopped. All false religions shall be destroyed by the prevalence of the truth. For he, Christ, shall reign till all his enemies are put under his feet. "Thy kingdom come, and hell' s o' erpower: and to thy scepter all subdue." Amen and Amen.