Exodus 36:3 And they received from Moses all the offering which the children of Israel had brought for the work of the service of the sanctuary, to make it. And they brought yet to him free-offerings every morning. (WBS)
Amos 4:5 And offer a sacrifice of thanksgiving with leaven, and proclaim and publish the free-offerings: for this pleaseth you, O ye children of Israel, saith the Lord GOD. (WBS)