New Revised Standard Version
For if these things are yours and are increasing among you, they keep you from being ineffective and unfruitful in the knowledge of our Lord Jesus Christ.

Contemporary English Version
If you keep growing in this way, it will show that what you know about our Lord Jesus Christ has made your lives useful and meaningful.

New American Bible
If these are yours and increase in abundance, they will keep you from being idle or unfruitful in the knowledge of our Lord Jesus Christ.

Douay-Rheims Bible
For if these things be with you and abound, they will make you to be neither empty nor unfruitful in the knowledge of our Lord Jesus Christ.

For if these things be with you and abound, they will make you to be neither empty nor unfruitful in the knowledge of our Lord Jesus Christ.

in you.

John 5:42 But I know you, that you have not the love of God in you.

2 Corinthians 9:14 And in their praying for you, being desirous of you, because of the excellent grace of God in you.

2 Corinthians 13:5 Try your own selves if you be in the faith: prove ye yourselves. Know you not your own selves, that Christ Jesus is in you, unless perhaps you be reprobates?

Philippians 2:5 For let this mind be in you, which was also in Christ Jesus:

Colossians 3:16 Let the word of Christ dwell in you abundantly: in all wisdom, teaching and admonishing one another in psalms, hymns and spiritual canticles, singing in grace in your hearts to God.

Philemon 1:6 That the communication of thy faith may be made evident in the acknowledgment of every good work that is in you in Christ Jesus.

and abound.

1 Corinthians 15:58 Therefore, my beloved brethren, be ye steadfast and unmoveable: always abounding in the work of the Lord, knowing that your labour is not in vain in the Lord.

2 Corinthians 8:2,7 That in much experience of tribulation, they have had abundance of joy and their very deep poverty hath abounded unto the riches of their simplicity. . . .

Philippians 1:9 And this I pray: That your charity may more and more abound in knowledge and in all understanding:

Colossians 2:7 Rooted and built up in him and confirmed in the faith, as also you have learned: abounding in him in thanksgiving.

Colossians 3:16 Let the word of Christ dwell in you abundantly: in all wisdom, teaching and admonishing one another in psalms, hymns and spiritual canticles, singing in grace in your hearts to God.

1 Thessalonians 3:12 And may the Lord multiply you and make you abound in charity towards one another and towards all men: as we do also towards you,

1 Thessalonians 4:1 For the rest therefore, brethren, pray and beseech you in the Lord Jesus that, as you have received from us, how you ought to walk and to please God, so also you would walk, that you may abound the more.

2 Thessalonians 1:3 We are bound to give thanks always to God for you, brethren, as it is fitting, because your faith groweth exceedingly and the charity of every one of you towards each other aboundeth.

they.

John 15:7,8 If you abide in me and my words abide in you, you shall ask whatever you will: and it shall be done unto you. . . .

2 Corinthians 5:13-17 For whether we be transported in mind, it is to God: or whether we be sober, it is for you. . . .

barren.

Proverbs 19:15 Slothfulness casteth into a deep sleep, and an idle soul shall suffer hunger.

Matthew 20:3,6 And going out about the third hour, he saw others standing in the marketplace idle. . . .

Matthew 25:26 And his lord answering, said to him: Wicked and slothful servant, thou knewest that I reap where I sow not and gather where I have not strewed.

Romans 12:11 In carefulness not slothful. In spirit fervent. Serving the Lord.

1 Timothy 5:13 And withal being idle they learn to go about from house to house: and are not only idle, but tattlers also and busy bodies, speaking things which they ought not.

Hebrews 6:12 That you become not slothful, but followers of them who through faith and patience shall inherit the promises.

unfruitful.

Matthew 13:22 And he that received the seed among thorns, is he that heareth the word, and the care of this world and the deceitfulness of riches choketh up the word, and he becometh fruitless.

John 15:2,6 Every branch in me that beareth not fruit, he will take away: and every one that beareth fruit, he will purge it, that it may bring forth more fruit. . . .

Titus 3:14 And let our men also learn to excel in good works for necessary uses: that they be not unfruitful.

in.

2 Peter 1:2 Grace to you and peace be accomplished in the knowledge of God and of Christ Jesus our Lord.