He is among 12 disciples taught to heal by Jesus Matthew 10:1-8
He supports Paul that Gentiles need not be circumcised Acts 15:1,2,12-22 Galatians 2:7-10
He gets a report from Paul on progress among the Gentiles Acts 21:17-20 Galatians 1:19
He sees the arisen Jesus I Corinthians 15:7
His epistle writes of temptations and trials James 1:1-27
He writes on equality of man James 2:1-13
He comments on faith without works James 2:14-26
He warns of the tongue James 3:1-18