He that hath an ear, etc. See Barnes "Revelation 2:7".

In this fourth letter and in the next three, this general exhortation comes at the very end, while in the first three letters it precedes the promi…

He that has an ear, let him hear
(See Gill on Revelation 2:7).

The Lord knows when the works of His people are performed in love, faith, zeal, and patience. Yet, if His eyes—which are as a flame of fire—observe…