'Two leaved' in the Bible

Thus said Jehovah, To His anointed, to Cyrus, Whose right hand I have laid hold on, To subdue nations before him, Yea, loins of kings I loose, To open before him two-leaved doors, Yea, gates are not shut:

'I go before thee, and crooked places make straight, Two-leaved doors of brass I shiver, And bars of iron I cut asunder,