There are three lights in which we may examine the epistles to the seven churches; namely, literal, prophetical, and practical.
Viewed literally, we learn what was the condition of these seven assemblies in the days of John the evangelist, and the special features which characterized each of them. The Nicolaitans had troubled both the assembly at Ephesus and that at Pergamos. Those falsely called Jews, that is, God's people on earth, but here declared by the Spirit to be of the synagogue of Satan, were met with at Smyrna and at Philadelphia. Persecution had raged at Pergamos, during which Antipas, Christ's faithful martyr, had sealed his testimony with his blood; and the devil by similar means was about to try the faithful in Smyrna. Doctrinal evil had gained a footing in the assembly in Pergamos, and was rampant in that in Thyatira; whilst deadness had crept over the assembly in Sardis, and lukewarmness characterized that in Laodicea. How soon had the light begun to burn dim, and how great was the triumph of the enemy, even before the last of the apostles had been removed from the earth! In Thyatira the bulk of the assembly, the angel in-eluded, had been seduced by the teaching of one called (symbolically one may believe) Jezebel; in Sardis a few only had kept their garments undefiled; and in Laodicea it was a question to which their subsequent conduct would furnish the answer whether any in that assembly had spiritual life in their soul.
Viewed prophetically, we trace in these epistles all outline, and the only one we have, of the church's history from the close of the apostolic age to the coming of the Lord Jesus Christ into the air for His saints. For, though we do meet in them with notices of things which will happen after that epoch (chap. 2:26, 27; 3:3, 10), yet the history of such events must be sought for elsewhere; the epistles really closing with the time when (the saints having been caught up) Christendom will be left like a house without a tenant, a body without a soul, to be spewed out of Christ's mouth as a worthless, nauseous thing. Thus, what these epistles viewed prophetically are to the church, namely, the outline of its history to the close of its earthly sojourn, the parables of the kingdom are to the kingdom of God or of heaven, namely, the prophetic outline of the history of the kingdom during the absence on high of the King. But, whereas in the parables we learn what was to be from man's failure in, as well as God's thoughts about, the kingdom; in these epistles, whilst we behold the failure of that which has been entrusted to men, we learn also what the faithful are to do in the different conditions of failure which are portrayed, and hence their practical utility in a twofold way is brought out to us.
For prophecy it must be remembered, if rightly used, is most practical. Peter tells us of the practical value of the Old Testament predictions about the kingdom (2 Peter 1:19-21), and the Lord Himself has illustrated in the prophetic parable of the servants (Matt. 24:45-51) the danger to any teacher, who fails to remember what scripture tells us of His return. Again in the discourse with His disciples about the future of Jerusalem (Luke 21), by acquainting them with circumstances attending the city's downfall by the Romans, and His return in power, the disciples alive at either epoch would know how to act in the first case, and how to feel as the predicted signs shall come to pass, and which must herald His approach. (Ver. 8-28.)
But, besides this use of prophecy, we may view these seven epistles in another, a practical light, as affording instruction and profit for God's saints throughout the whole period between John's day and the Lord's return in the air. For, though addressed each one to the angel of the local assembly designated in the letter, the whole seven were to be made acquainted with the message sent to each. (Chap, 1:11.) Thus, whilst each assembly was acknowledged to be distinct from the other six, it was to be concerned with the letters written by the Lord's commands to the rest. Distinct assemblies indeed they were, each one responsible to Him, yet all parts of the one assembly on earth of which He is the living and glorified Head. So the address to be sent to each was to be communicated to them all. Nor were they to be confined to themselves in their day. People in Greece and Syria, as well as in Egypt and Italy, were to take heed to the things here declared, as we learn from the one exhortation common to them all, which applies as much to us as it did to every listener and reader in John's day, “He that hath an ear, let him hear what the Spirit saith unto the churches.”