38 but Paul did not think it wise to take him, because he had deserted them in Pamphylia and had not continued with them in the work.

Read Acts 15:38 Using Other Translations

But Paul thought not good to take him with them, who departed from them from Pamphylia, and went not with them to the work.
But Paul thought best not to take with them one who had withdrawn from them in Pamphylia and had not gone with them to the work.
But Paul disagreed strongly, since John Mark had deserted them in Pamphylia and had not continued with them in their work.