Which my lips have uttered, and my mouth hath spoken, when I was in trouble.
The psalmist celebrates one deliverance, but means it as proof of God's constant mercy to His people through all ages. His point is comfort: our subjection to enemies has been the furnace proving us as silver, and God's hearing of the faithful proves His acceptance of them alone, not the wicked.
AI summary
Commenting on Psalm 66:1-20
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, Psa 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.
Commenting on Psalm 66:13-20
Which my lips have uttered,.... Or "opened" (e); publicly and distinctly declared, and from which there is no going back; see Jdg 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.