John Gills Exposition of the Bible Commentary - 2 Chronicles 33:12
And when he was in affliction ,.... In prison; however, in fetters; according to the Targum, the Chaldeans made an instrument of brass with holes in it, and put him in it, and fire about it, something like the brasen bull of Perillus; and the above Arabian writer F11 Abulph. & Suidas, ib. (Hist. Dynast. Dyn. 3. p. 67.) calls it a tower of brass: he besought the Lord his God ; by prayer and supplication: and humbled himself greatly before the Lord God of his fathers ;... read more
Matthew Henry's Complete Commentary - 2 Chronicles 33:11-20
We have seen Manasseh by his wickedness undoing the good that his father had done; here we have him by repentance undoing the evil that he himself had done. It is strange that this was not so much as mentioned in the book of Kings, nor does any thing appear there to the contrary but that he persisted and perished in his son. But perhaps the reason was because the design of that history was to show the wickedness of the nation which brought destruction upon them; and this repentance of Manasseh... read more