If I lack'd anything.
A guest, I answer'd, worthy to be here:
Love said, You shall be he.
I the unkind, ungrateful? Ah my dear,
I cannot look on thee.
Love took my hand, and smiling did reply,
Who made the eyes but I?
Truth Lord, but I have marr'd them: let my shame
Go where it doth deserve.
And know you not, says Love, who bore the blame?
My dear, then I will serve.
You must sit down, says Love, and taste my meat:
So I did sit and eat.
The concise ending speaks for itself. Not only is this a symbolic and Christian reference, it is also a secular sign of mutual acceptance, an acknowledgement of friendship. The hesitant sinner accepts God as well as himself. 
 Note also the colon at the end of the penultimate line, another pivot — the invitation is proffered and the response is to take it up.