John Gill Commentary Psalms 83:3

"Thy take crafty counsel against thy people, And consult together against thy hidden ones." — Psalms 83:3 (ASV)

They have taken crafty counsel against your people
The people of Israel, hereafter named, whom God had chosen and avouched to be his people; these they dealt subtlety with, as the king of Egypt had done with their forefathers; and this, agreeably to their character, being the seed of the old serpent, more subtle than any of the beasts of the field; these devised cunning devices, formed crafty schemes for the destruction of the Lord's people; but often so it is, that the wise are taken in their own craftiness, and their counsel is carried headlong:

and consulted against your hidden ones ;
not hidden from the Lord, and unknown unto him, though from their enemies, and unknown by them, and so the object of their hatred and persecution; but hidden by him as his jewels and peculiar treasure, which he takes care of; hidden under the shadow of his wings, in the secret of his presence and tabernacle, as in a pavilion; and therefore it was a daring piece of insolence in their enemies to attack them: so the life of saints is said to be hid with Christ in God, which denotes both its secrecy and safety; see (Colossians 3:3) , the Targum is,

``against the things hidden in your treasures;'' meaning the riches of the temple.