2 Chronicles 30:21

Seven days shall ye eat unleavened bread; even the first day ye shall put away leaven out of your houses: for whosoever eateth leavened bread from the first day until the seventh day, that soul shall be cut off from Israel.

Seven days thou shalt eat unleavened bread, and in the seventh day shall be a feast to the Lord.

Purge out therefore the old leaven, that ye may be a new lump, as ye are unleavened. For even Christ our passover is sacrificed for us: Therefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth.

And when he had consulted with the people, he appointed singers unto the Lord, and that should praise the beauty of holiness, as they went out before the army, and to say, Praise the Lord; for his mercy endureth for ever.

And he set the Levites in the house of the Lord with cymbals, with psalteries, and with harps, according to the commandment of David, and of Gad the king’s seer, and Nathan the prophet: for so was the commandment of the Lord by his prophets. And the Levites stood with the instruments of David, and the priests with the trumpets. And Hezekiah commanded to offer the burnt offering upon the altar. And when the burnt offering began, the song of the Lord began also with the trumpets, and with the instruments ordained by David king of Israel.

So there was great joy in Jerusalem: for since the time of Solomon the son of David king of Israel there was not the like in Jerusalem.

And on the three and twentieth day of the seventh month he sent the people away into their tents, glad and merry in heart for the goodness that the Lord had shewed unto David, and to Solomon, and to Israel his people.

And they, continuing daily with one accord in the temple, and breaking bread from house to house, did eat their meat with gladness and singleness of heart,

And ye shall rejoice before the Lord your God, ye, and your sons, and your daughters, and your menservants, and your maidservants, and the Levite that is within your gates; forasmuch as he hath no part nor inheritance with you.

And there ye shall eat before the Lord your God, and ye shall rejoice in all that ye put your hand unto, ye and your households, wherein the Lord thy God hath blessed thee.

And thou shalt rejoice in thy feast, thou, and thy son, and thy daughter, and thy manservant, and thy maidservant, and the Levite, the stranger, and the fatherless, and the widow, that are within thy gates.

And on the fifteenth day of the same month is the feast of unleavened bread unto the Lord: seven days ye must eat unleavened bread.

Now the feast of unleavened bread drew nigh, which is called the Passover.

Then came the day of unleavened bread, when the passover must be killed.

Then he said unto them, Go your way, eat the fat, and drink the sweet, and send portions unto them for whom nothing is prepared: for this day is holy unto our Lord: neither be ye sorry; for the joy of the Lord is your strength.

Rejoice in the Lord alway: and again I say, Rejoice.

Praise him with the sound of the trumpet: praise him with the psaltery and harp. Praise him with the timbrel and dance: praise him with stringed instruments and organs. Praise him upon the loud cymbals: praise him upon the high sounding cymbals.