Read God Will Finish His Work, by Alistair Begg, at One Place.
22 But you have come to Mount Zion and to the city of the living God, the heavenly Jerusalem, and to myriads of angels, 23 to the general assembly and church of the firstborn who are enrolled in heaven, and to God, the Judge of all, and to the spirits of the righteous made perfect, 24 and to Jesus, the mediator of a new covenant, and to the sprinkled blood, which speaks better than the blood of Abel. 25 See to it that you do not refuse Him who is speaking. For if those did not escape when they refused him who warned them on earth, much less will we escape who turn away from Him who warns from heaven.
Wretched man that I am! Who will set me free from the body of this death ?
And do not get drunk with wine, for that is dissipation, but be filled with the Spirit,
I think I long to die to receive that last and final purification that will usher me into heaven. An angel will not be any purer than I shall be, for I shall be able to say, in a double sense, "I am clean," through Jesus' blood and through the Spirit's work. We should extol the power of the Holy Spirit who makes us fit to stand before our Father in heaven! Yet we must not allow the hope of perfection there to 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. Grace must be at work in us now or it will not be perfected in us then. Let us pray to "be filled with the Spirit," that we may increasingly bring forth the fruits of righteousness."