A.T. Robertson Commentary 2 Timothy 1:18

"(the Lord grant unto him to find mercy of the Lord in that day); and in how many things he ministered at Ephesus, thou knowest very well." — 2 Timothy 1:18 (ASV)

Grant to him to and mercy (δωιη αυτω ευρειν ελεος). Second aorist active optative in wish for the future again as in verse 16. Find mercy from the Lord (Jesus) as he found me.

Thou knowest very well (βελτιον συ γινωσκεις). Literally, "thou knowest better (than I)," for he did those things in Ephesus where thou art. Only N.T. example of βελτιον, in D text of Ac 10:28.