He speaks of it as a thing already done, either to express his assurance of it, or because this Psalm was made after it was done.
His desire; or, thy vengeance; which may be understood out of Psa_54:5. But there is no necessity of any supplement. The words in the Hebrew run thus,
mine eye hath looked upon mine enemies; either with delight, as this phrase signifies, Psa_22:17 27:4, and elsewhere; or without fear or shame. I shall not be afraid to look them in the face, having God on my side.