Matthew Poole and continuators on Psalms 110:7

7 He shall drink of the brook in the way : therefore shall he lift up the head .

This may be understood either, 1. properly, to express the great fervency and diligence of the Messias in the prosecution of his business; who having routed and destroyed the main body of his enemies forces, pursues those that fled with such eagerness, that he will not lose any time in refreshing himself, as might seem necessary after such hot and hard service, but will content himself with drinking a little water out of the brook which he finds in his way, that being a little refreshed therewith, he may proceed with more vigour and efficacy in his work. And so this place alludes to the History of Gideons 300 men, who onely lapped a little of the water; of whom see Iudg. 7. Or, 2. metaphorically, to express the humiliation and Passion of the Messias, and thereby to prevent a great mistake which might arise in mens minds concerning him, from the great successes and victories here ascribed to him, which might induce them to think that the Messias should be exempted from all sufferings, and be crowned with constant and perpetual Triumphs. To [illegible: 1 word] this conceit, he intimates here, that the Messias, before [illegible: 1 word] obtain that power and glory mentioned in the foregoing verses, should have a large portion of afflictions in the way to it, or whilst he was in the way or course of his life, before he came to his end or rest▪ and to that honour of sitting at his Fathers right hand. Waters in Scripture do very frequently signifie afflictions or sufferings, as Psal. 42. 7, &c. To drink of them signifies to feel or bear them, as Isa. 51. 17. Ier. 25. 15. & 49. 12. Mat. 20. 22. and in this case it may note Christs willing submission to them. A brook or river of water is oft used in Scripture to express a great abundance either of comforts, as Psal. 36. 8. or of tribulations, as Psal. 18. 4. & 124. 4. and therefore may be more fitly used in this place than a cup, by which the afflictions of other men are commonly expressed, to intimate that the sufferings of the Messiah were unspeakably more and heavier than the sufferings of other men, and that he should drink up not a small cup, but the whole river or Sea of his Fathers wrath due to our sins.

Which word may note either the effect or the consequent of his sufferings.

i. e. Shall be delivered from all his sorrows and sufferings, and exalted to great glory and joy and felicity, as this phrase usually signifies, as Psal. 3. 4. & 27. 6. Ier. 52. 31. and oft elsewhere; as on the contrary, to hang down the head is a signification of great grief and shame, as Lament. 2. 10.