And the children of Israel did according to the word of Moses; and they borrowed of the Egyptians jewels of silver, and jewels of gold, and raiment:

Jamieson-Fausset-Brown Bible Commentary

35. children of Israel borrowed of the Egyptians jewels of silver-When the Orientals go to their sacred festivals, they always put on their best jewels. The Israelites themselves thought they were only going three days' journey to hold a feast unto the Lord, and in these circumstances it would be easy for them to borrow what was necessary for a sacred festival. But borrow conveys a wrong meaning. The word rendered borrow signifies properly to ask, demand, require. The Israelites had been kept in great poverty, having received little or no wages. They now insisted on full remuneration for all their labor, and it was paid in light and valuable articles adapted for convenient carriage.

Matthew Henry's Concise Commentary

12:29-36 The Egyptians had been for three days and nights kept in anxiety and horror by the darkness; now their rest is broken by a far more terrible calamity. The plague struck their first-born, the joy and hope of their families. They had slain the Hebrews' children, now God slew theirs. It reached from the throne to the dungeon: prince and peasant stand upon the same level before God's judgments. The destroying angel entered every dwelling unmarked with blood, as the messenger of woe. He did his dreadful errand, leaving not a house in which there was not one dead. Imagine then the cry that rang through the land of Egypt, the long, loud shriek of agony that burst from every dwelling. It will be thus in that dreadful hour when the Son of man shall visit sinners with the last judgment. God's sons, his first-born, were now released. Men had better come to God's terms at first, for he will never come to theirs. Now Pharaoh's pride is abased, and he yields. God's word will stand; we get nothing by disputing, or delaying to submit. In this terror the Egyptians would purchase the favour and the speedy departure of Israel. Thus the Lord took care that their hard-earned wages should be paid, and the people provided for their journey.