{2} For it is {b} impossible for those who were once enlightened, and have {c} tasted of the heavenly gift, and were made partakers of the Holy Ghost,

(2) He adds a vehemency to his exhortation, and a sharp threatening of the certain destruction that will come to them who fall away from God and his religion.

(b) He speaks of a general backsliding and those who fall away from the faith completely, not of sins committed through the weakness of a man against the first and the second table of the law.

(c) We must note the force of this word, for it is one thing to believe as Lydia did, whose heart God opened in Ac 16:13 and another thing to have some taste.

People's New Testament

6:4 For it is impossible. There are sins that have no forgiveness (Mt 12:31,32). There are Apostates who can never find a place for repentance, not because of the failure of God's mercy, but because they have destroyed their moral capacity for a heartfelt repentance. Usually the most hardened sinner are apostates.

Those who were once enlightened. Had the light of the Gospel. See Joh 8:12.

Have tasted. Experienced.

Of the heavenly gift. The new life in Christ. Christ giveth life unto the world (Joh 20:31).

And were made partakers of the Holy Spirit. The Spirit of God is sent into the heart of all sons (Ga 4:6 Ro 8:9).

Wesley's Notes

6:4 It is impossible for those who were once enlightened - With the light of the glorious love of God in Christ. And have tasted the heavenly gift - Remission of sins, sweeter than honey and the honeycomb. And been made partakers of the Holy Ghost - Of the witness and the fruit of he Spirit.

Scofield Reference Notes

[2] impossible

Heb 6:4-8 presents the case of Jewish professed believers who halt short of faith in Christ after advancing to the very threshold of salvation, even "going along with" the Holy Spirit in His work of enlightenment and conviction. Jn 16:8-10. It is not said that they had faith. This supposed person is like the spies at Kadesh-barnea Dt 1:19-26 who saw the land and had the very fruit of it in their hands, and yet turned back.

Margin partakers

Gr. "metochous," going along with.

Jamieson-Fausset-Brown Bible Commentary

4. We must "go on toward perfection"; for if we fall away, after having received enlightenment, it will be impossible to renew us again to repentance.

for those-"in the case of those."

once enlightened-once for all illuminated by the word of God taught in connection with "baptism" (to which, in Heb 6:2, as once for all done," once enlightened" here answers); compare Eph 5:26. This passage probably originated the application of the term "illumination" to baptism in subsequent times. Illumination, however, was not supposed to be the inseparable accompaniment of baptism: thus Chrysostom says, "Heretics have baptism, not illumination: they are baptized in body, but not enlightened in soul: as Simon Magus was baptized, but not illuminated." That "enlightened" here means knowledge of the word of truth, appears from comparing the same Greek word "illuminated," Heb 10:32, with Heb 10:26, where "knowledge of the truth" answers to it.

tasted of the heavenly gift-tasted for themselves. As "enlightened" refers to the sense of sight: so here taste follows. "The heavenly gift"; Christ given by the Father and revealed by the enlightening word preached and written: as conferring peace in the remission of sins; and as the Bestower of the gift of the Holy Spirit (Ac 8:19, 20),

made partakers of the Holy Ghost-specified as distinct from, though so inseparably connected with, "enlightened," and "tasted of the heavenly gift," Christ, as answering to "laying on of hands" after baptism, which was then generally accompanied with the impartation of the Holy Ghost in miraculous gifts.

Matthew Henry's Concise Commentary

6:1-8 Every part of the truth and will of God should be set before all who profess the gospel, and be urged on their hearts and consciences. We should not be always speaking about outward things; these have their places and use, but often take up too much attention and time, which might be better employed. The humbled sinner who pleads guilty, and cries for mercy, can have no ground from this passage to be discouraged, whatever his conscience may accuse him of. Nor does it prove that any one who is made a new creature in Christ, ever becomes a final apostate from him. The apostle is not speaking of the falling away of mere professors, never convinced or influenced by the gospel. Such have nothing to fall away from, but an empty name, or hypocritical profession. Neither is he speaking of partial declinings or backslidings. Nor are such sins meant, as Christians fall into through the strength of temptations, or the power of some worldly or fleshly lust. But the falling away here mentioned, is an open and avowed renouncing of Christ, from enmity of heart against him, his cause, and people, by men approving in their minds the deeds of his murderers, and all this after they have received the knowledge of the truth, and tasted some of its comforts. Of these it is said, that it is impossible to renew them again unto repentance. Not because the blood of Christ is not sufficient to obtain pardon for this sin; but this sin, in its very nature, is opposite to repentance and every thing that leads to it. If those who through mistaken views of this passage, as well as of their own case, fear that there is no mercy for them, would attend to the account given of the nature of this sin, that it is a total and a willing renouncing of Christ, and his cause, and joining with his enemies, it would relieve them from wrong fears. We should ourselves beware, and caution others, of every approach near to a gulf so awful as apostacy; yet in doing this we should keep close to the word of God, and be careful not to wound and terrify the weak, or discourage the fallen and penitent. Believers not only taste of the word of God, but they drink it in. And this fruitful field or garden receives the blessing. But the merely nominal Christian, continuing unfruitful under the means of grace, or producing nothing but deceit and selfishness, was near the awful state above described; and everlasting misery was the end reserved for him. Let us watch with humble caution and prayer as to ourselves.