For three
The judgments on Judah and Israel were fulfilled as to Judah in the 70 years' captivity; as to Israel (the northern kingdom) in the world-wide dispersion which still continues.
Related Commentaries of Amos 2:4
Amos 2:4
4 Thus saith the LORD; For three transgressions of Judah, and for four, I will not turn away the punishment thereof; because they have despised the law of the LORD, and have not kept his commandments, and their lies caused them to err, after the which their fathers have walked: