and before I went up to Jerusalem to see those who had been apostles before me, I retired to Arabia, and afterwards returned to Damascus.

Then three years later I went up to Jerusalem to get acquainted with Cephas, but I spent only two weeks with him;

Then, fourteen years later, I again went up to Jerusalem, with Barnabas, and took Titus with me too.

that is, Hagar (and Hagar means Mount Sinai, in Arabia) and corresponds to the present Jerusalem, for Jerusalem is in slavery with her children.

But the Jerusalem that is above is free, and she is our mother.