Cross reference
Romans 15:22
22 For which reason I was frequently kept from coming to you:
Romans 1:13
13 You may be certain, my brothers, that it has frequently been in my mind to come to you (but till now I was kept from it), so that I might have some fruit from you in the same way as I have had it from the other nations.
1 Thessalonians 2:17-18
17 But we, my brothers, being away from you for a short time, in body but not in heart, had all the more desire to see your face;
18 For which reason we made attempts to come to you, even I, Paul, once and again; but Satan kept us from coming.