And he said, Let me go, for the day breaketh. And he said, I will not let thee go, except thou bless me.

Wesley's Notes

32:26 Let me go - The angel, by an admirable condescension, speaks Jacob fair to let him go, as God said to Moses, Exo 32:10. Let me alone. Could not a mighty angel get clear of Jacob's grapples? He could; but thus he would put an honour upon Jacob's faith and prayer. The reason the angel gives why he would be gone is because the day breaks, and therefore he would not any longer detain Jacob, who had business to do, a journey to go, a family to look after. And he said, I will not let thee go except thou bless me - He resolves he will have a blessing, and rather shall all his bones be put out of joint, than he will go away without one. Those that would have the blessing of Christ must be in good earnest, and be importunate for it.

Jamieson-Fausset-Brown Bible Commentary

26. I will not let thee go, except thou bless me-It is evident that Jacob was aware of the character of Him with whom he wrestled; and, believing that His power, though by far superior to human, was yet limited by His promise to do him good, he determined not to lose the golden opportunity of securing a blessing. And nothing gives God greater pleasure than to see the hearts of His people firmly adhering to Him.

Matthew Henry's Concise Commentary

32:24-32 A great while before day, Jacob being alone, more fully spread his fears before God in prayer. While thus employed, One in the likeness of a man wrestled with him. When the spirit helpeth our infirmities, and our earnest and vast desires can scarcely find words to utter them, and we still mean more than we can express, then prayer is indeed wrestling with God. However tried or discouraged, we shall prevail; and prevailing with Him in prayer, we shall prevail against all enemies that strive with us. Nothing requires more vigour and unceasing exertion than wrestling. It is an emblem of the true spirit of faith and prayer. Jacob kept his ground; though the struggle continued long, this did not shake his faith, nor silence his prayer. He will have a blessing, and had rather have all his bone put out of joint than go away without one. Those who would have the blessing of Christ, must resolve to take no denial. The fervent prayer is the effectual prayer. The Angel puts a lasting mark of honour upon him, by changing his name. Jacob signifies a supplanter. From henceforth he shall be celebrated, not for craft and artful management, but for true valour. Thou shalt be called Israel, a prince with God, a name greater than those of the great men of the earth. He is a prince indeed that is a prince with God; those are truly honourable that are mighty in prayer. Having power with God, he shall have power with men too; he shall prevail, and gain Esau's favour. Jacob gives a new name to the place. He calls it Peniel, the face of God, because there he had seen the appearance of God, and obtained the favour of God. It becomes those whom God honours, to admire his grace towards them. The Angel who wrestled with Jacob was the second Person in the sacred Trinity, who was afterwards God manifest in the flesh, and who, dwelling in human nature, is called Immanuel, Ho 12:4,5. Jacob halted on his thigh. It might serve to keep him from being lifted up with the abundance of the revelations. The sun rose on Jacob: it is sun-rise with that soul, which has had communion with God.