CONJUNCTIONS. As used for "that" after "so"As for "that" after "so." ("In which way;" "As the result of which.") This is a consequence of the original connection of as with "so."
“You shall be so received
As you shall deem yourself lodged in my heart.
“Catesby . . . finds the testy gentleman so hot
As he will lose his head ere give consent.
This occurs less commonly without the antecedent so:
“Yet such deceit as thou that dost beguile
Art juster far.
This points out an important difference between the Elizabethan and modern uses of as. We almost always apply it, like "because" (117), to the past and the present; Shakespeare often uses it of the future, in the sense of "according as."
“My lord, I warrant you we'll play our part
As he shall think by our true diligence
He is no less than what we say he is.
Here a modern reader would at first naturally suppose as to mean "since" or "because;" but the context shows that it means "according as."
“And, sister, as the winds give benefit
And convoy is assistant, do not sleep,
But let me hear from you.