1 Kings 11:30

30 and Ahijah layeth hold on the new garment that [is] on him, and rendeth it -- twelve pieces,

1 Kings 11:30 Meaning and Commentary

1 Kings 11:30

And Ahijah caught the new garment that was on him
This looks as if it was Jeroboam's garment, having got a new one to appear before the king in; though the sense may be this, that the prophet took hold of his own garment that was upon himself:

and rent it in twelve pieces;
as symbolical of the twelve tribes of Israel.

1 Kings 11:30 In-Context

28 and the man Jeroboam [is] mighty in valour, and Solomon seeth the young man that he is doing business, and appointeth him over all the burden of the house of Joseph.
29 And it cometh to pass, at that time, that Jeroboam hath gone out from Jerusalem, and Ahijah the Shilonite, the prophet, findeth him in the way, and he is covering himself with a new garment; and both of them [are] by themselves in a field,
30 and Ahijah layeth hold on the new garment that [is] on him, and rendeth it -- twelve pieces,
31 and saith to Jeroboam, `Take to thee ten pieces, for thus said Jehovah, God of Israel, lo, I am rending the kingdom out of the hand of Solomon, and have given to thee the ten tribes,
32 and the one tribe he hath for My servant David's sake, and for Jerusalem's sake, the city which I have fixed on, out of all the tribes of Israel.
Young's Literal Translation is in the public domain.