1 Thessalonians 2:16-17

2:16 because they hinder us from speaking to the Gentiles so that they may be saved. Thus they constantly fill up their measure of sins, but wrath has come upon them completely.

Forced Absence from Thessalonica

2:17 But when we were separated from you, brothers and sisters, for a short time (in presence, not in affection) we became all the more fervent in our great desire to see you in person.