“There is a general omission in the saints of God, in their not giving the Holy Ghost the glory that is due to his person, and for his great work of salvation in us, insomuch that we have in our hearts almost lost this third person. We give daily in our thoughts, prayers, affections, and speeches, an honour to the Father and the Son; but who almost directs the aims of his praise (more than in that general way of doxology we use to close our prayers with, ‘All glory be,’ etc) unto God the Holy Ghost? He is a person in the Godhead equal with the Father and the Son; and the work he doth for us in its kind is as great as those of the Father or the Son. … The Holy Ghost is indeed the last in order of the persons, as proceeding from the other two, yet in the participation of the Godhead he is equal with them both; and in his work, though it be last done for us, he is not behind them, nor in the glory of it inferior to what they have in theirs. … And indeed, no less than all that is done, or to be done in us, was left to the Holy Ghost’s share, for the ultimate execution of it; and it was not left him as the refuse, it being as necessary and as great as any of theirs. But he being the last person, took his own lot of the works about our salvation, which are the last, which is to apply all, and to make all actually ours, whatever the other two had done afore for us. The scope of this treatise is to set forth this work to you in the amplitude of it, to the end you may accordingly in your hearts honour this blessed and holy Spirit.”
– Thomas Goodwin’s opening statement in his Work of the Holy Ghost in our Salvation. He can be hard work to read in places, but I think it’s worth it.