These things have I written unto you that believe on the name of the Son of God; that ye may know that ye have eternal life, and that ye may believe on the name of the Son of God.
Ver. 13. That ye may know that ye have eternal life] sc. In the pledges and firstfruits of it, in the true graces of the Spirit, whereof there are many marks and evidences laid down in this Epistle, that we might be at a certainty; not a certainty of hope only (as Papists foolishly distinguish), but of faith too; even a full assurance.
That ye may believe] That ye may be confirmed, continued, and increased in it.