Where did the treasures come from

One asks the obvious question of these Israelites who are now living in isolation from civilization – where did all these priceless gems, precious metals and furnishings come from? They were treasures from Egypt, parting presents from people they had served, given in response to the requests of the Israelites, “jewels of silver and jewels of gold and raiment” (Ex.12:35-36). Later when Moses asked the Israelites to give back their treasures for the building of the tabernacle, they freely gave with such generosity Moses had to call a halt to their giving (Ex.35:129; 36:6), - identify the various items listed and see how they were used in the tabernacle (Ex.25:3-7). Even the women’s mirrors were melted down for making of the laver in which the priests washed their feet and hands (Ex.38:8).