To have God at your side, what precious thing would you give willingly from your heart?

Exodus 25: 1-8 Bible Gateway link

New King James Version (NKJV) 

Offerings for the Sanctuary

1 Then the Lord spoke to Moses, saying: 2 “Speak to the children of Israel, that they bring Me an offering. From everyone who gives it willingly with his heart you shall take My offering. 

3 And this is the offering which you shall take from them: gold, silver, and bronze; 4 blue, purple, and scarlet thread, fine linen, and goats’ hair; 5 ram skins dyed red, badger skins, and acacia wood; 6 oil for the light, and spices for the anointing oil and for the sweet incense; 7 onyx stones, and stones to be set in the ephod and in the breastplate. 8 And let them make Me a sanctuary, that I may dwell among them.