Albert Barnes Commentary Acts 1:18

"(Now this man obtained a field with the reward of his iniquity; and falling headlong, he burst asunder in the midst, and all his bowels gushed out." — Acts 1:18 (ASV)

Now this man, etc. The money which was given for betraying the Lord Jesus was thrown down in the temple, and the field was purchased with it by the Jewish priests (see Matthew 27:5, 10).

A man is often said to do a thing when he furnished means for doing it.

The reward of iniquity. The price which he received for that deed of stupendous wickedness—the betraying of the Lord Jesus.

And falling headlong. He first hanged himself, and then fell and was burst asunder (Matthew 27:5).