1 Chronicles 29:9

Every man according as he purposeth in his heart, so let him give; not grudgingly, or of necessity: for God loveth a cheerful giver. And God is able to make all grace abound toward you; that ye, always having all sufficiency in all things, may abound to every good work:

Let your heart therefore be perfect with the Lord our God, to walk in his statutes, and to keep his commandments, as at this day.

For to their power, I bear record, yea, and beyond their power they were willing of themselves;

I know also, my God, that thou triest the heart, and hast pleasure in uprightness. As for me, in the uprightness of mine heart I have willingly offered all these things: and now have I seen with joy thy people, which are present here, to offer willingly unto thee.

These things have I spoken unto you, that my joy might remain in you, and that your joy might be full.

But I rejoiced in the Lord greatly, that now at the last your care of me hath flourished again; wherein ye were also careful, but ye lacked opportunity.

Therefore, my brethren dearly beloved and longed for, my joy and crown, so stand fast in the Lord, my dearly beloved.

But now when Timotheus came from you unto us, and brought us good tidings of your faith and charity, and that ye have good remembrance of us always, desiring greatly to see us, as we also to see you: Therefore, brethren, we were comforted over you in all our affliction and distress by your faith: For now we live, if ye stand fast in the Lord. For what thanks can we render to God again for you, for all the joy wherewith we joy for your sakes before our God;

For if there be first a willing mind, it is accepted according to that a man hath, and not according to that he hath not.

And thou shalt keep the feast of weeks unto the Lord thy God with a tribute of a freewill offering of thine hand, which thou shalt give unto the Lord thy God, according as the Lord thy God hath blessed thee: And thou shalt rejoice before the Lord thy God, thou, and thy son, and thy daughter, and thy manservant, and thy maidservant, and the Levite that is within thy gates, and the stranger, and the fatherless, and the widow, that are among you, in the place which the Lord thy God hath chosen to place his name there.

My heart is toward the governors of Israel, that offered themselves willingly among the people. Bless ye the Lord.

And when he cometh home, he calleth together his friends and neighbours, saying unto them, Rejoice with me; for I have found my sheep which was lost.

My son, if thine heart be wise, my heart shall rejoice, even mine. Yea, my reins shall rejoice, when thy lips speak right things.

Thy people shall be willing in the day of thy power, in the beauties of holiness from the womb of the morning: thou hast the dew of thy youth.