Let us (said he) pour on him all we can:
Let the world's riches, which dispersed lie,
Contract into a span.
So strength first made a way;
The beauty flow'd, then wisdom, honour, pleasure:
When almost all was out, God made a stay,
Perceiving that alone of all his treasure
Rest in the bottom lay.
For if I should (said he)
Bestow this jewel also on my creature,
He would adore my gifts instead of me,
And rest in Nature, not the God of Nature:
So both should losers be.
Yet let him keep the rest,
But keep them with repining restlessness:
Let him be rich and weary, that at least,
Man would be a “loser” because he would lose out on finding his rest in God and, importantly, God would in some sense be a “loser” because his most blessed creature would not return to him. God does not need the human, perhaps, but he does want man to rest in him, and somehow finds fulfilment of his divinity in opening himself up to his creatures. 
 After all, Christian revelation shows God as a Trinity, supreme love existing in the unity of three persons. 
 The progression of the argument in this stanza is worth noting, with the powerful, unequivocal last line. God is under no illusion as to the moral frailty of the humans he has created.