Philadelphia

Here there is no reproof. Though there is
little strength {Rev. 3:8},
and trial from false things — things of Satan around, yet the Lord was with them, and saw not a little to commend. Christ greatly encourages them. He reminds them that He is holy and true, that He has the key of David (authority and power in relation to the promises made to David and his throne),
that He openeth and no man shutteth; and shutteth and no man openeth {Rev. 3:7}.
The frequent use of the word “my” in this address, “my word,” “my name,” “my patience,” “my God,” seems to show that they were remarkable for personal attachment to Christ Himself.
They kept Christ’s word. They not only read His word, but treasured it up in their hearts; often meditated on it, mixed faith with it, and esteemed it a precious treasure. This, I apprehend, is keeping His word. The Psalmist said:
Thy word have I hid in mine heart, that I might not sin against thee (Psa. 119:11).
They also kept Christ’s name. They did not deny it. That name was above every name to them. They did not prostitute it for worldly purposes. To whatever bad things men now attach the name of Christ, these saints did not do so. It was sacred to them. They gathered together in His name, and felt something of the holy responsibilities connected with the confession of that name. They pleaded in prayer that name. They laboured in that name. They confessed that name. They well knew that at the name of Jesus every knee would yet bow, and every tongue confess, to the glory of God the Father.
Christ assures them that He has set before them
an open door {Rev. 3:8},
and that, however they may be tried by those who are of the synagogue of Satan, yet no man can shut that door. He also promises that those who now distress them shall yet pay them honor, and know that He has loved them. This we judge will take place at our Lord’s appearing. He keeps bright before them His speedy return from heaven, and promises the keepers of His word of patience, 2deliverance from, or out of, the hour of temptation — the great tribulation that is coming upon all the world. He also exhorts them still to
hold fast {see Rev. 3:11}
what they have — His word and name — and to beware of men, who will seek to hinder, their devotedness and zeal for Christ, and rob them, not of
the crown of life,
which seems to be the portion of all believers, but of —
the crown of righteousness {2 Tim. 4:8},
which those may expect who love His appearing. Such can spend and be spent for His glory.
However weak and oppressed here, the overcomer is promised the place of strength and honor in the presence of the God and Father of our Lord Jesus Christ.
I will make him a pillar in the temple of my God, and write upon him the name of my God, etc. {see Rev. 3:12}