Walk through Amos, verse by verse, with the great Bible Commentaries of Matthew Henry (1662 - 1714) & Adam Clarke (1760 - 1832)
3:13
Hear ye, and testify in the house of Jacob, saith the Lord GOD, the God of hosts, KJV
{Hear ye, and witness ye in the house of Jacob, saith the Lord God of hosts.} Wycliffe's Bible
Hear ye - This is an address to the prophet.