ITS.It is well known that this word occurs but once in AV [Note: Authorized Version.] , Lev_25:5, and that even there it is due to subsequent printers, the word in 1611 being itthat which groweth of it owne accord. The use of It for its is well seen in Shaks. King John, ii. i. 160.
Go to it grandam, child:
Give grandam kingdom, and it grandam will
Give it a plum, a cherry, and a fig.
The form its was only beginning to come into use about 1611. The usual substitutes in AV [Note: Authorized Version.] are his and thereof. Thus Mat_6:33 But seek ye first the kingdom of God, and his righteousness, where Tindale has the rightwisnes thereof (RV [Note: Revised Version.] takes the pronoun to be masculine, referring to God, not kingdom, and retains his).
Hastings' Dictionary of the Bible
Edited by James Hastings, D.D. Published in 1909