having been deeply rooted [in Him] and now being continually built up in Him and [becoming increasingly more] established in your faith, just as you were taught, and overflowing in it with gratitude.

how will we escape [the penalty] if we ignore such a great salvation [the gospel, the new covenant]? For it was spoken at first by the Lord, and it was confirmed to us and proved authentic by those who personally heard [Him speak],

so that He may strengthen and establish your hearts without blame in holiness in the sight of our God and Father at the coming of our Lord Jesus with all His saints (God’s people).

when He comes to be glorified in His saints on that day [that is, glorified through the changed lives of those who have accepted Him as Savior and have been set apart for His purpose], and to be marveled at among all who have believed, because our testimony to you was believed and trusted [and confirmed in your lives].

Do not accept an accusation against an elder unless it is based on [the testimony of at least] two or three witnesses.

You too, be patient; strengthen your hearts [keep them energized and firmly committed to God], because the coming of the Lord is near.

(for those Levites who formerly became priests [received their office] without [its being confirmed by the taking of] an oath, but this One [was designated] with an oath through the One who said to Him,

“The Lord has sworn
And will not change His mind or regret it,
‘You (Christ) are a Priest forever’”).

Children, it is the last hour [the end of this age]; and just as you heard that the antichrist is coming [the one who will oppose Christ and attempt to replace Him], even now many antichrists (false teachers) have appeared, which confirms our belief that it is the last hour.

But if he does not listen, take along with you one or two others, so that every word may be confirmed by the testimony of two or three witnesses.

And they went out and preached everywhere, while the Lord was working with them and confirming the word by the signs that followed.]

For with the heart a person believes [in Christ as Savior] resulting in his justification [that is, being made righteous—being freed of the guilt of sin and made acceptable to God]; and with the mouth he acknowledges and confesses [his faith openly], resulting in and confirming [his] salvation.

For I tell you that Christ has become a servant and a minister to the circumcision (Jews) on behalf of God’s truth, to confirm and verify the promises made to the fathers,

In this way our testimony about Christ was confirmed and established in you,

Do we then nullify the Law by this faith [making the Law of no effect, overthrowing it]? Certainly not! On the contrary, we confirm and establish and uphold the Law [since it convicts us all of sin, pointing to the need for salvation].

If I am not [considered] an apostle to others, at least I am one to you; for you are the seal and the certificate and the living evidence of my apostleship in the Lord [confirming and authenticating it].

Now it is God who establishes and confirms us [in joint fellowship] with you in Christ, and who has anointed us [empowering us with the gifts of the Spirit];

This is the third time that I am visiting you. Every fact shall be sustained and confirmed by the testimony of two or three witnesses.

Brothers and sisters, I speak in terms of human relations: even though a last will and testament is just a human covenant, yet when it has been signed and made legally binding, no one sets it aside or adds to it [modifying it in some way].