John Gill Commentary 2 Kings 4:38

"And Elisha came again to Gilgal. And there was a dearth in the land; and the sons of the prophets were sitting before him; and he said unto his servant, Set on the great pot, and boil pottage for the sons of the prophets." — 2 Kings 4:38 (ASV)

And Elisha came again to Gilgal
Where he was with Elijah a little before his assumption to heaven, (2 Kings 2:1) and whither he went, there being a school of the prophets, as he did to all places where there were any, and where he had been before with Elijah; partly to instruct, encourage, and strengthen them, and partly to confirm his office as a prophet by miracles, which he did in several places he came to:

and there was a dearth in the land ;
a famine through drought:

and the sons of the prophets were sitting before him :
as disciples before their master, see (Acts 22:3)

and he said unto his servant ;
very probably Gehazi:

set on the great pot, and seethe pottage for the sons of the prophets ;
who seemed to have lived together in one house or college, and to be to the number of one hundred, see (2 Kings 4:43) and therefore required to have a large pot set on to boil pottage for them all.