The Children of Israel were told to keep three feasts each year - the feast of unleavened bread, the feast of first fruits, and the feast of ingathering. Should we still do that?

In Exodus 23:14-16, Moses receives the instructions about these feasts. Those three verses in Exodus comprise our brief story. Their inner meaning is explained in Arcana Coelestia 9286-9296.

There are three feasts. In the Word, the number three represents a completeness, a sense of things being covered from beginning to end. Our thankfulness to the Lord is supposed to keep going - to endure.

The first feast, of unleavened bread, stands for worship, for our thankfulness for the Lord's action in our minds to get rid of false ideas. That enables us to start to receive good loves.

The second feast, of first fruits, relates to the planting of true ideas in that "soil" of initial loves for doing good.

The third feast, of harvest, or ingathering, stands for the time when, by applying our true ideas, we receive real good - loves of the neighbor and of the Lord - that become the middle of our lives. This is the state of rebirth, where we have - by working through the year (our lives), and enduring in thankfulness, allowed the Lord to get rid of our false ideas, and push our evil loves to the periphery, so that good can work, and be fruitful.

These feasts, then, represent the progress of our spiritual lives. In some manner, we need to keep them.

4138. 'With drums and with harps' means as regards spiritual good, that is to say, the state in which - thinking from the proprium - it had believed itself to be as regards that good. This is clear from the fact that 'drums and harps' has reference to good - spiritual good - as may be recognized from many places in the Word. Spiritual good is that which is called the good of faith, and is charity, whereas celestial good is that which is called the good of love, and is love to the Lord. The Lord has two kingdoms in the heavens, the first being called His celestial kingdom and consisting of those who are governed by love to the Lord, and the second being referred to as the spiritual kingdom and consisting of those who are governed by charity towards the neighbour. These kingdoms are quite distinct and separate, and yet in the heavens they act as one. Regarding these distinct and separate kingdoms - the celestial and the spiritual - see what has been stated many times already.

[2] In the Churches of long ago various kinds of musical instruments were used, such as drums, lyres, flutes, harps, instruments of ten strings, and many others. Some of these belonged to the group connected with celestial things, and some to the group connected with spiritual. When these instruments are mentioned in the Word they imply such celestial or spiritual things, so that from the instrument mentioned one can know which kind of good forms the subject - whether spiritual good or celestial good. Drums and harps belonged to the group connected with spiritual things, and that is why the phrase 'as regards spiritual good' is being used in this paragraph. For 'a harp' is used in reference to spiritual things, and stringed instruments serve to mean spiritual things, but wind instruments celestial ones, see 418-420.