John Gill Commentary 2 Timothy 3:11

"persecutions, sufferings. What things befell me at Antioch, at Iconium, at Lystra; what persecutions I endured. And out of them all the Lord delivered me." — 2 Timothy 3:11 (ASV)

Persecutions, afflictions, which came unto me at Antioch ,
&c.] In Pisidia; where the Jews that contradicted and blasphemed his doctrine, and envied his success, stirred up the chief of the city, both men and women, against him, and Barnabas; who persecuted them and expelled them out, of their coasts, (Acts 13:45Acts 13:50) and also at Iconium; where both Jews and Gentiles made an assault upon them, to use them ill, and stone them, (Acts 14:5) and likewise at Lystra; where the apostle was stoned, and drawn out of the city, and left for dead, (Acts 14:19) .

And these instances are the rather mentioned because they were done in those parts, where Timothy had lived, (Acts 16:1) and so knew the truth of these things, not only from the apostle's mouth, but from the testimonies of others; and perhaps he might have been a witness to some of them himself;

what persecutions I endured :
not only in the above places, but elsewhere; see a detail of them in (2 Corinthians 11:23–28) ,

but out of them all the Lord delivered me ;
see (2 Corinthians 1:10) (2 Timothy 4:17 2 Timothy 4:18) , this he says to the glory of the grace and power of God, to whom he ascribes all his deliverances; and for the encouragement of Timothy, and other saints, under sufferings, who may hope and believe that the Lord will deliver them in his own time and way, (Psalms 34:19) .