Albert Barnes Commentary Matthew 24:48

"But if that evil servant shall say in his heart, My lord tarrieth;" — Matthew 24:48 (ASV)

That evil servant. If that servant, thus appointed and holding this office, should be evil or wicked.

Say in his heart. Secretly suppose.

Delayeth his coming. Will not return for a long time; or does not return as soon as was expected, and perhaps may not return at all.