'The first resurrection,' mentioned in Revelation 20:5, 6, does not mean a first resurrection, but the essence and primary part of resurrection, which is salvation and eternal life. There is only one resurrection to life. A second does not happen, and is not mentioned anywhere in the Bible.

(References: Apocalypse Explained 6; Apocalypse Revealed 851; Revelation 20:5-6)

8888. 'Six days you shall labour and do all your work' means the conflict which comes before and is preparatory to that marriage. This is clear from the meaning of 'six days' as states of conflict, conflict being meant by 'six', see 720, 737, 900, and states by 'days', 23, 487, 488, 493, 2788, 4850, 5672, 5962, 6110, 8426; and from the meaning of 'labouring and doing one's work' as attending to the necessary things of life, here those of spiritual life, which is life in heaven.

[2] Furthermore by the conflict which comes before and is preparatory to the heavenly marriage one should understand spiritual conflict or temptation. For before a person enters into the heavenly marriage, that is, before being regenerated, he is involved in conflict with the evils and falsities residing with him; these have to be removed before truth and good from the Lord can be received. They are removed - those evils and falsities - by means of the truths of faith; for a person not only learns through those truths what good is, but is also led to good by means of them. This state is the first that a person who is being regenerated passes through; and it is called the state which comes before and is preparatory to the heavenly marriage. But when the person is governed by good and is led by the Lord by means of good, he has entered into the heavenly marriage, and so is in heaven since the heavenly marriage is heaven. The first state is what is meant by the six days that come before the seventh, the second is what is meant by the seventh day. Regarding these two states with a person, see 7923, 8505, 8506, 8510, 8512, 8516, 8539, 8643, 8648, 8658, 8685, 8690, 8701, 8722.

[3] Since the heavenly marriage, which is heaven, is meant by 'the sabbath', the Lord's kingdom in the heavens is called an everlasting sabbath, that is, everlasting rest and peace; and there the six days of labour are no more.