Psalms 110:7 - Ellicott's Commentary On The Whole Bible

Drink... lift up. — The victorious leader, “faint yet pursuing” (Judges 8:4), pauses at the stream that crosses his path, and then refreshed, with head once more erect, continues his pursuit of the foe. Such is undoubtedly the meaning of this verse, and we need not suppose a sudden change of subject, as some critics do, as if the picture representing a thirsty warrior were unworthy of Jehovah. Poetry knows nothing of such timidity, and with the grand scene of Isaiah 63:1-6, of the hero stained with blood, we need not hesitate to admit this further detail so true to life, even if we had not in Psalms 60, 108 images of a still more homely type.