NET

27 This is what prompted him to rebel against the king: Solomon built a terrace, and he closed up a gap in the wall of the city of his father David.

Darby

27 And this was the cause that he lifted up his hand against the king: Solomon was building Millo, and closing the breach^D2164 of the city of David his father;

Darby Bible Notes

breach - * Probably the ravine between Zion and Ophel – to complete the fortifications of Jerusalem.

KJV

27 And this [was] the cause that he lifted up [his] hand against the king: Solomon built Millo, [and] repaired^K1884the breaches of the city of David his father.

KJV Bible Notes

repaired: Heb. closed.