God provides wealth for his purposes. The Lord made plans and provision for the gold of the Tabernacle many generations ahead of time. Let's follow the gold, shall we?

He made Abraham rich with gold (Gen 13:2)
He explained to Abraham that his descendents would suffer in slavery in Egypt, then leave the country with great wealth (Gen 15:13-14)
He explained this to Moses, also (Ex 3:21-22)
The Israelites took gold from the Egyptians (Ex 12:35-36)
The Israelites chose to use some of this gold to make an idol (Ex 32:2-4)
God's long-planned objective for this gold was achieved when it was used to cover the Ark of the Covenant (Ex 35:22; 37:1-2)

Please note that the gold became part of the Tabernacle, which was a tremendous means of grace for generations of Israelites. God always directs his provisions to they are a means to His grace.

"Jesus Christ is the same yesterday and today and forever." (Heb 13:8) Therefore we rejoice in knowing that the same God who directed gold to flow through many generations to the Ark of the Covenant is at work in our communities of faith today.