Romans 8:30.

Herman Witsius has written:

“What should hinder us from explaining Rom. viii. 30. in this manner? Whom he did predestinate, that is, whom, by his most free and immutable decree, he has chosen to grace and glory, them he also called, that is, by his word and Spirit he sweetly invited, and powerfully drew them from a state of sin and misery to communion with Christ, and being endowed with faith, regenerated them: and whom he called, them he also justified; that is, as soon as they were united to Christ by the Holy Spirit and by faith, he, on the account of the merits of Christ imputed to them, acquitted them from the guilt of sin, and adjudged them to have a right to all the good things of Christ, as well in grace as in glory: and whom he justified, them he also glorified; that is, he not only gave them a right, but also put them in actual possession of the greatest blessings, 1st. By sanctifying them, and transforming them more and more to his own image, and making them partakers of a divine nature, which doubtless is a great degree of glory. 2dly. By plentifully pouring in upon them the sweetest consolations of his Spirit, which are, as it were, the preludes of joy and gladness. 3dly. and lastly, By making them perfectly happy, first in soul and then in soul and body together.”

(Witsius, Herman. The Economy of the Covenants Between God and Man, Volume I, Kingsburg, CA: den Dulk Christian Foundation, 1990, p. 394.)