For we know that if our earthly "house" [i.e., our physical body] which is like a tent, is torn down, we have [the promise of] a building from God, a never ending "house" in heaven that is not made by human hands.

We have

For my son here was dead [spiritually], but is [now] alive again. He was lost [from me], but [now] is found.' And they began to celebrate.

"Truly, truly, I tell you, the person who listens to my message and believes [in] the One who sent me [i.e., God] has never ending life [i.e., as a hope. See Titus 1:2; 3:7]. He will not be judged [and condemned], but has [already] passed from being [spiritually] dead to being [spiritually] alive.

And you [Gentiles] were once [spiritually] dead because of your shortcomings and sins.

Because

[However], the person who loves his brother continues to live in [harmony with] the light [of God's truth], and such a person is not the cause of others stumbling [over his example].

And this is His commandment: We should believe in the name of His Son Jesus Christ [i.e., the person of Christ], and love one another, just He has commanded us to do.

Loved ones, we should have love for one another, because love comes from [the very nature of] God, and every person who [continually] loves [others] has been [spiritually] conceived by God [See 2:29; 3:9], and knows [he is in fellowship with] God.

This is [one] way we know that we love God's [spiritually reborn] children: [It is] when we love God and obey what He commands us to do.

And the King will answer them and say, 'Truly I tell you, since you did all this for one of my least [significant] brothers, you did it for me.'

If you love one another, then everyone will know by [observing] this that you are my disciples."

My commandment [to you] is this: You should love one another just as I have loved you.

But the fruit produced by the Holy Spirit is love, joy, peace, patience, kindness, generosity, faithfulness,

For this reason also, since I heard about your faith in the Lord Jesus and your love for all of the saints [i.e., God's holy people],

for we have heard about [the evidence of] your faith in [the service of] Christ Jesus, and about the love you have [shown] for all the saints.

Now you people do not need anyone to write to you about loving [your] brothers, for you yourselves have been taught by God to love one another.

For God is not [so] unjust as to forget the work you are doing and the love you have shown for Him, as you ministered to the saints [i.e., His holy people] and continue to minister [to them].

Continue to love [one another] as brothers.

[Since] you have purified your souls by [your] obedience to the truth [i.e., the Gospel message], which produces a genuine love for your brothers, [now] you should have this kind of fervent, heartfelt love for one another.

Now to summarize: All of you should think alike. Be sympathetically understanding [toward one another]. Be loving toward [your] brothers [and sisters]. Be tender-hearted and humble-minded.

and brotherly kindness along with your godliness, and with your brotherly kindness, develop love.

General references

For [when] I was hungry, you did not feed me; [when] I was thirsty, you did not give me anything to drink;

If you love one another, then everyone will know by [observing] this that you are my disciples."

I command you to do these things so that you will [demonstrate your] love for one another. [Note: Or this may mean that His command was to love one another, as in verse 12].

And this is the [greatest] commandment [See Matt. 2:37-38] we have received from Him: [It requires] that the person who [claims to] love God should also love his brother.