5. Spiritual worship is performed with a spiritual activity, and sensibleness of God; with an active understanding to meditate on his excellency, and an active will to embrace him when he drops upon the soul. If we understand the amiableness of God, our affections will be ravished; if we understand the immensity of his goodness, our spirits will be enlarged. We are to act with the highest intention suitable to the greatness of that God with whom we have to do (Psalm cl. 2): “Praise him according to his excellent greatness;” not that we can worship him equally, but in some proportion the frame of the heart is to be suited to the excellency of the object; our spiritual strength is to be put out to the utmost, as creatures that act naturally do. The sun shines, and the fire burns to the utmost of their natural power. This is so necessary, that David, a spiritual worshipper, prays for it before he sets upon acts of adoration (Psalm lxxx. 18): “Quicken us, that we may call upon thy name;” as he was loth to have a drowsy faculty, he was loth to have a drowsy instrument, and would willingly have them as lively as himself (Psalm lvii. 8): “Awake up, my glory; awake, psaltery and harp; I myself will awake early.” How would this divine soul screw himself up to God, and be turned into nothing but a holy flame! Our souls must be boiling hot when we serve the Lord.[502] The heart doth no less burn when it spiritually comes to God, than when God doth spiritually approach to it;[503] a Nabal’s heart, one as cold as a stone, cannot offer up a spiritual service. Whatsoever is enjoined us as our duty, ought to be performed with the greatest intenseness of our spirit. As it {a228} is our duty to pray, so it is our duty to pray with the most fervent importunity. It is our duty to love God, but with the purest and most sublime affections; every command of God requires the whole strength of the creature to be employed in it. That love to God wherein all our duty to God is summed up, is to be with all our strength, with all our might, &c.[504] Though in the covenant of grace he hath mitigated the severity of the law, and requires not from us such an elevation of our affections as was possible in the state of innocence, yet God requires of us the utmost moral industry to raise our affections to a pitch, at least equal to what they are in other things. What strength of affection we naturally have, ought to be as much and more excited in acts of worship, than upon other occasions and our ordinary works. As there was an inactivity of soul in worship, and a quickness to sin, when sin had the dominion; so when the soul is spiritualized, the temper is changed; there is an inactivity to sin, and an ardor in duty; the more the soul is “dead to sin,” the more it is “alive to God,”[505] and the more lively too in all that concerns God and his honor; for grace being a new strength added to our natural, determines the affections