Then the people rejoiced, for that they offered willingly, because with perfect heart they offered willingly to the Lord: and David the king also rejoiced with great joy.
But who am I, and what is my people, that we should be able to offer so willingly after this sort? for all things come of thee, and of thine own have we given thee. – 1 Chronicles 29:9, 14
Two things to notice about these people: 1. they offered willingly with 2. a perfect heart.
The Lord says, He is looking for someone with a perfect heart and a willing soul so that He can show Himself strong on their behalf. So that He can cancel all their debt. Someone He can make live above only and not beneath. Someone He can make the lender and not the borrower.
God is always looking for that person.