Recollect that there are two kinds of perfection which the Christian needs-the perfection of justification in the person of Jesus, and the perfection of sanctification wrought in him by the Holy Spirit. At present, corruption yet remains even in the breasts of the regenerate-experience soon teaches us this. Within us are still lusts and evil imaginations.

But I rejoice to know that the day is coming when God shall finish the work which he has begun; and he shall present my soul, not only perfect in Christ, but perfect through the Spirit, without spot or blemish, or any such thing…

Yet let not the hope of perfection hereafter make us content with imperfection now. If it does this, our hope cannot be genuine; for a good hope is a purifying thing, even now. The work of grace must be abiding in us now or it cannot be perfected then. Let us pray to “be filled with the Spirit,” that we may bring forth increasingly the fruits of righteousness.

from Morning and Evening, Charles Spurgeon (emphasis/formatting added)