This Psalm is the voice of Christ in the Remnant in the latter-day trial; but I take the wicked to be properly the unrenewed and unyielding Jews, whose portion is told in verse 5. But the Lord has heard Christ for the Remnant. He is not only His strength, but theirs.
The last verse is the intercessional blessing of Him that intervenes, introducing, or the door into, the millennial glory under Him as the Lord, for then the Lord properly lays aside His humiliation as Mediator, i.e., in His people. We have seen this celebrated in Psa. 24.
The Spirit of Christ speaks in this Psalm (having this power of intercession) in the Remnant, or Him as the Head of the Remnant, expressing the trial of their connection with the wicked in Jerusalem, etc. But they look to Jehovah—they cry, and beg Him not to be silent. The reference is to "the Oracle"—the cry is the consequence, the expression of their unwilling connection with the wicked—praying Jehovah they may not be as in their train, being separate in spirit, and avowing this, and the benediction because the Lord has heard this (v. 7). Messiah recognizes, in the midst of it all, Jehovah is His strength.
8. Seems to be the discovery of this by the Spirit in the Remnant receiving and acknowledging Messiah.
9. Then He becomes the benedictory Intercessor of this people understanding Messiah in faith.