1 John 3:18

¹⁶ By this we know what love is: Jesus laid down His life for us, and we ought to lay down our lives for our brothers.

¹⁷ If anyone with earthly possessions sees his brother in need, but withholds his compassion from him, how can the love of God abide in him?

Little children, let us love not in word and speech, but in action and truth.

¹⁹ And by this we will know that we belong to the truth, and will assure our hearts in His presence:

²⁰ Even if our hearts condemn us, God is greater than our hearts, and He knows all things.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB: Little children, let us love not in word and speech, but in action and truth.
KJV: My little children, let us not love in word, neither in tongue; but in deed and in truth.
WEB: My little children, let’s not love in word only, or with the tongue only, but in deed and truth.
ASV: [My] Little children, let us not love in word, neither with the tongue; but in deed and truth.
DARBY: Children, let us not love with word, nor with tongue, but in deed and in truth.
BLB: Little children, may we love not in word nor in tongue, but in work and in truth.

ÅB: Mine barn! la oss ikke elske med ord eller med tunge, men i gjerning og sannhet!
OTB: Små barn, la oss ikke elske med ord eller tale, men med handlinger og i sannhet.
B1930: Mine barn! la oss ikke elske med ord eller med tunge, men i gjerning og sannhet!

James 2:15–16
Suppose a brother or sister is without clothes and daily food.
Read in context
Romans 12:9
Love must be sincere. Detest what is evil; cling to what is good.
Read in context
1 Peter 1:22
Since you have purified your souls by obedience to the truth so that you have a genuine love for your brothers, love one another deeply, from a pure heart.
Read in context
Galatians 5:13
For you, brothers, were called to freedom; but do not use your freedom as an opportunity for the flesh. Rather, serve one another in love.
Read in context
1 Corinthians 13:4–7
Love is patient, love is kind. It does not envy, it does not boast, it is not proud.
Read in context
Galatians 6:1–2
Brothers, if someone is caught in a trespass, you who are spiritual should restore him with a spirit of gentleness. But watch yourself, or you also may be tempted.
Read in context
Ephesians 4:1–3
As a prisoner in the Lord, then, I urge you to walk in a manner worthy of the calling you have received:
Read in context
Matthew 25:41–45
Then He will say to those on His left, ‘Depart from Me, you who are cursed, into the eternal fire prepared for the devil and his angels.
Read in context