Confide ye in Jehovah for ever; for in Jah, Jehovah, is the rock of ages.
Isaiah 26 opens with a song that moves from salvation to righteousness to peace. Verse 4 turns that song into a command: keep trusting, because of who the LORD is.
A song sung before the deliverance arrives
The people singing here have not yet come out of their trouble. They sing their future praise while the storm is still on. Their call to trust reaches us as a voice from days of trouble still to come.
They have not come out of the tribulation yet. But they count on the Lord's faithfulness to bring them through. In that confidence they can say ahead of time what their songs of deliverance will be... Suffering saint! what a lesson of strong comfort is here. Scripture does not only comfort us by recording what God's people went through in past days. It also pulls back the veil that hides the future from us... As it opens up those scenes, a voice comes back to us from "the elect" of those terrible days still to come. And what is its message? "Trust in the LORD forever, for the LORD GOD is an everlasting rock."
The doubled name behind the command
The command rests on a name, and the chapter builds toward it step by step.
Notice the sequence of thought here. First salvation, then righteousness, then peace. But we enjoy that peace as the mind and heart stay in simple trust on the Lord. So comes the exhortation of verse 4, where the name of the Almighty is, so to speak, doubled. It is "JAH-JEHOVAH," to stress that He is indeed "the Rock of Ages"... Isaiah spoke this exhortation to the men of his day, before God showed His delivering might. It is just as valid for us today — indeed more so, since God has made Himself known to us in Christ in a far more intimate way.
Each half of that name says something about God and time.
It is on GOD that the firm foundations of our faith for time and for eternity must rest. If our faith is in Christ, it must be in THE CHRIST OF GOD, founded upon the character, the perfections, and the attributes of the unchanging, eternal God... Jah — the title of God in the eternity of His existence, "inhabiting eternity," to whom past, present, and to come is one eternal NOW. Jehovah — the title of God as the everlasting one, "that is, and was, and is to come."
The Rock identified
Commentators read the Rock of this verse as pointing to a Person.
The subject of the Stone or rock will be familiar to many readers. It often speaks of our Lord Jesus Christ, and in circumstances of pressure and crisis... The rock is Christ, the Son of the living God... Another Scripture from the long list of references is Isaiah 26:4, where older translations read "everlasting strength" and Mr. Darby gives "the rock of ages." What substantial steadying comfort in a topsy-turvy world!
The character trust takes on
Trust here does something to the one who trusts.
So those who trust in Him share the character of the foundation they rest on. The living stones in 1 Peter 2, for example, get their character from the Living Stone they have come to. This reminds us that what counts is not our weakness but the Lord's strength. We may rest in unshaken confidence on Him who cannot be moved, for He is the same yesterday and today and forever.
Trust when you cannot see the reason
The command also covers the times when God's way makes no sense to us.
Here the lesson is TRUST: a needed lesson if we are to be kept quiet and confident in the turbulent waters of sorrow and loss. We must trust in the absolute goodness and wisdom and love of God. We have no hope but in Him, and we need no other. We must put our whole confidence in Him and rest in His strong hand and tender heart. We must trust Him even when we cannot understand His way. We must go on trusting, walking by faith and not by sight. This is the way of peace.
Summary
- Rock. The doubled name "JAH-JEHOVAH" marks God as the One who inhabits eternity — the Rock of Ages.
- Christ. Commentators identify that Rock with the Lord Jesus — solid comfort in an unstable world.
- Forever. Because the Rock never changes, trust has no end date and no gaps — not even when His way makes no sense.
- Character. Those who rest on Him take on the character of their foundation, as living stones take theirs from the Living Stone.
- Song. The call comes from people singing their deliverance before it arrives. Trust can sing while the trouble is still on.