But Paul and Barnabas [continued to] speak out boldly, saying, "It was necessary that the message of God be delivered to you [Jews] first. But since you have rejected it and [thereby] consider yourselves to be unworthy of [receiving] never ending life, we [i.e., Paul and Barnabas] will now begin proclaiming it to the [unconverted] Gentiles.

When the Jews resisted [Paul's efforts] and spoke against him and his message, he shook out his clothing [i.e., an expression of rejection and contempt] and said to them "Let your blood be on your own heads [i.e., you are responsible for whatever harm comes from your action]; I am not responsible. From now on I will go [and preach] to the Gentiles [only]."

Pay attention, brothers, so that there will not be in any one of you an evil heart of unbelief, [resulting] in falling away from the living God.

So, since it still remains for some people to enter into that rest, but those to whom the good news was previously proclaimed [See verse 2] failed to enter it because of disobedience [See 3:18]

And

So, since we are made right with God by [our] faith, we have peace with Him through our Lord Jesus Christ.

You people should be alert; stand firm in the faith; act like [godly] men; be [spiritually] strong.

For we do not have [the right to] rule over your faith [i.e., to dictate concerning your personal relationship with God], but we want to work with you for your happiness. For you are [already] standing firm in your faith. [Note: This whole narrative alludes to some unresolved problems still existing there in Corinth].

rooted and built up in [your relationship to] Him, established by your faith [or, "in the faith"], just as you were taught, overflowing with thanksgiving.

You should withstand his efforts by maintaining a strong faith [in God], remembering that your [Christian] brothers in [the rest of] the world are experiencing [and enduring] suffering similar to yours.

Be

Therefore, you should not brag [about your superiority] over the [natural] branches [i.e., the rejected Jews]. But, if you must brag, it should not be over you [Gentiles] nourishing the roots [i.e., the Jews], but over the roots nourishing you.

Have the same [good] thoughts toward one another. Do not [always] be thinking you are a "bigshot," but lower yourself to accept humble tasks [or, humble people]. Do not think you are so smart.

I tell you, this man went back home right with God instead of the other man. For every person who exalts himself [as important] will be humbled, but whoever humbles himself will be exalted [as important]."

We overthrow [vain] reasonings and every lofty idea raised against the knowledge of God [i.e., as revealed through the Gospel], and take captive [our] every thought to [make it] obey Christ.

[for] he opposes [the true Gospel message] and exalts himself against everything that is called "God" or that which is worshiped. So, he sits in God's temple [i.e., the church ?] displaying himself as [though he were] God.

lacking in natural affection, unwilling to be reconciled [to their enemies], slanderers, lacking self-control, brutal, haters of what is good,

But He gives [us] more unearned favor [i.e., to overcome the world]. Therefore, the Scripture says [Prov. 3:34], "God opposes proud people, but gives unearned favor to those who are humble."

And in the same way, you younger [Christians] should be [respectfully] submissive to the older ones. And all of you should [be willing to] humbly serve one another, for God stands opposed to [the efforts of] proud people, but extends His unearned favor to those [who serve] with humility.

For you are saying, 'I am wealthy; I have made plenty of money and do not need anything.' But you do not know that you are [spiritually] wretched and miserable and poor and blind and naked.

Cause her as much torment and sorrow as she gave herself honor and luxurious living. For she is saying to herself, 'I sit as a queen; I am not a widow and I will never suffer grief.'

But

So, the person who thinks he is standing firm [in the faith] should pay attention [to his life], so that he does not fall [away from God].

So then, my dear ones, just as you people were always obedient [to my teaching] when I was there with you, so now, in my absence [also], be [obedient] all the more. [Continue to] complete your own salvation [i.e., by living faithfully to the end. See Rom. 13:11] with fear and trembling [i.e., with a reverent and submissive spirit],

So, as long as God's promise of entering into a state of rest with Him [still] remains, we should fear that someone among you will appear [in the end] to have fallen short of [attaining] it. [Note: In this section "entering into rest" refers to Israel entering Canaan (verses 6, 8) and to Christians entering heaven (verses 3, 9). The "Sabbath day rest" is represented as a type of both].

And if you call upon [God as] your Father, who judges each person's work impartially, [then] conduct yourselves during the time you spend in this life showing reverence [to God].

General references

So, He did not perform very many supernatural deeds in that place because of the people's lack of faith.

But he denied [it] in front of all of them, saying, "I do not know what you are talking about."

So, the person who thinks he is standing firm [in the faith] should pay attention [to his life], so that he does not fall [away from God].