3:3 `Remember therefore what you have received and heard; and keep it, and repent. If therefore you will not wake up, I will come like a thief, and you will not know at what hour I will come upon you.

REMEMBER therefore what you have received and heard; and

From whom did they receive and what did they hear? They received instruction from the apostles and other prophets; that is what they heard...Bible was not written down as such for the church members to each have a copy. Thus, it was by hearing the truth (not the misleading religion like Jezebel was perpetrating at Thyatira).

KEEP IT, and

The Word of God is a treasure worth holding on to - 2 Timothy 1:13-14. In Hebrews 3:5-6, Hebrews 4:10-13, and Hebrews 10:19-25, we are told to hold on to our hope of eternal life and to nurture that hope by confession within an assemblage of believers. We are to hold on to that which is good - 1 Thessalonians 5:19-22. Lastly, holding on (abiding in) the Word gives us freedom - John 8:31-36.

REPENT.

Repentance is ALWAYS required when sin has intervened and "deadened" the church. If you are one of those "dead" Christians, the solution to becoming alive again is here: REMEMBER, KEEP IT, and REPENT!

If therefore you will not WAKE UP, I will come like a thief and you will not know at what hour I will come upon you.

While this may refer to Christ's return (the day of the Lord) as recorded in 1 Thessalonians 5:1-6, more likely this refers to the unpredictable time of DEATH. Remember this church was in view of the necropolis (burial mounds) and apparently was preoccupied with death rituals.

PHYSICAL DEATH stops any chance to REMEMBER, KEEP IT, and REPENT.

IT IS TOO LATE WHEN YOU DIE!!!!!