Galatians 1:17-18

1:17 nor did I go up to Jerusalem to see those who were apostles before me, but right away I departed to Arabia, and then returned to Damascus.

1:18 Then after three years I went up to Jerusalem to visit Cephas and get information from him, and I stayed with him fifteen days.

Galatians 2:18

2:18 But if I build up again those things I once destroyed, I demonstrate that I am one who breaks God’s law.

Galatians 6:9

6:9 So we must not grow weary in doing good, for in due time we will reap, if we do not give up.