30 Bruises and contusions befall bad men, and plagues shall come in the inward parts of their belly.
Proverbs 20:30 Cross References - CAB
Proverbs 19:25
25 When a pestilent character is scourged, a simple man is made wiser, and if you reprove a wise man, he will understand discretion.
Proverbs 22:15
15 Folly is attached to the heart of a child, but the rod and instruction are then far from him.
Isaiah 27:9
9 Therefore shall the iniquity of Jacob be taken away; and this is his blessing, when I have taken away his sin; when they have broken to pieces all the stones of the altars as fine dust, and their trees shall not remain, and their idols shall be cut off, as a thicket afar off.
Isaiah 53:5
5 But He was wounded on account of our sins, and was bruised because of our iniquities; the chastisement of our peace was upon Him; and by His stripes we are healed.
Hebrews 12:10
10 For they indeed for a few days were disciplining us, as seemed best to them, but He for our profit, in order to partake of His holiness.