Keep the feast to the Lord your God, offering freely to him from the wealth he has given you

Give To The Lord Freely From What He Has Given You.

Then keep the feast of weeks to the Lord your God, with an offering freely given to him from the wealth he has given you:
Deuteronomy 16:10

Deu 16:17 Every man is to give as he is able, in the measure of the blessing which the Lord your God has given you.

1Co 5:6 This pride of yours is not good. Do you not see that a little leaven makes a change in all the mass?
1Co 5:7 Take away, then, the old leaven, so that you may be a new mass, even as you are without leaven. For Christ has been put to death as our Passover.
1Co 5:8 Let us then keep the feast, not with old leaven, and not with the leaven of evil thoughts and acts, but with the unleavened bread of true thoughts and right feelings.