Arcana Coelestia #3852
3852. 'And he served with him yet another seven years' means holy diligent effort. This is clear from the meaning of 'serving' as diligent effort, dealt with in 3824, 3846, and from the meaning of 'seven' as that which is holy, dealt with in 395, 433, 716, 881, 3824. The expression 'holy diligent effort' is used for that effort by means of which internal truths are joined to good, for internal truths in every case regard the Lord and are joined to a person by means of love to Him. This love is holiness itself.
Exodus 37:17-19
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He made the lampstand of pure gold. He made the lampstand of beaten work. Its base, its shaft, its cups, its buds, and its flowers were of one piece with it.
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There were six branches going out of its sides: three branches of the lampstand out of its one side, and three branches of the lampstand out of its other side:
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three cups made like almond blossoms in one branch, a bud and a flower, and three cups made like almond blossoms in the other branch, a bud and a flower: so for the six branches going out of the lampstand.