John Gills Exposition of the Bible Commentary - Psalms 66:14
Which my lips have uttered ,.... Or "opened" F5 פצו "aperuerunt", Pagninus, Montanus, Vatablus, Gejerus. ; publicly and distinctly declared, and from which there is no going back; see Judges 11:33 ; and my mouth hath spoken when I was in trouble ; this refers to the time when the people of God were under antichristian tyranny and bondage; and when they vowed and promised, that, if the Lord would deliver them, they would give him all praise and glory. read more
Matthew Henry's Complete Commentary - Psalms 66:13-20
The psalmist, having before stirred up all people, and all God's people in particular, to bless the Lord, here stirs up himself and engages himself to do it. I. In his devotions to his God, Ps. 66:13-15. He had called upon others to sing God's praises and to make a joyful noise with them; but, for himself, his resolutions go further, and he will praise God, 1. By costly sacrifices, which, under the law, were offered to the honour of God. All people had not wherewithal to offer these... read more