A.T. Robertson Commentary 2 Timothy 3:1

"But know this, that in the last days grievous times shall come." — 2 Timothy 3:1 (ASV)

Know this (τουτο γινωσκε). See 1 Corinthians 11:3; Php 1:12.

In the last days (εν εσχαταις ημεραις). See Jas 5:3; 1 Timothy 4:1.

Grievous (χαλεπο). Hard. See Eph 5:16.

Shall come (ενστησοντα). Future middle of ενιστημ (intransitive use), old verb, to stand on or be at hand, as in 2 Thessalonians 2:2.