Randy, here are the explanatory points which follow the quotation (pp. 480-481):
(1.) Improve it for raising your hearts in thankfulness to God, that ever ye were sealed with the seal of God’s covenant, and had his name called on you, while many in the world are utter strangers to the covenants of promise.
(2.) Improve it for your strengthening against temptation, considering that you are the Lord’s, not your own, and are under the most solemn and awful engagement to God, to resist the devil, the world, and the flesh; and also drawing strength from the death and resurrection of Christ, into whom they were baptised, Rom. 6:4.
(3.) Improve it for your humiliation under your sins and miscarriages, considering them as sins against the grace of baptism, and your engagements to God therein; remembering that sins after solemn engagements to the contrary, are highly offensive to God, and attended with more aggravating circumstances, than if they had never been baptised, and such solemn engagements entered into by you. The vows of God are upon you; break them not, and go not about after vows to make inquiry.
(4.) Improve your baptism to the strengthening of your faith and confidence in Jesus Christ, especially in downcastings under a sense of guilt; for it is a sign and seal of remission, adoption, etc., and so may answer the question to an exercised soul, How can I be put among the children?
(5.) Improve it to the vigorous exercise of, and growth in holiness, since thereby ye are engaged to newness of life, as ye “are raised from the dead,” Rom. 6:4. Were ye dedicated unto God, does not that say ye should be holy in heart, lip, and life? As God is holy, so be ye holy in all manner of life and conversation; remembering that without holiness no man shall see the Lord.
(6.) Lastly, Improve it to the increase of brotherly love, even love to all the saints, who are all baptised into one body, 1 Cor. 12:13. It is as unnatural for saints not to love one another, or to quarrel with one another, as it is for the members of the natural body to be at war with each other. Then love one another, as Christ hath loved you.