New Revised Standard Version
And by this we will know that we are from the truth and will reassure our hearts before him

Contemporary English Version
When we love others, we know we belong to the truth, and we feel at ease in the presence of God.

New American Bible
[Now] this is how we shall know that we belong to the truth and reassure our hearts before him

Douay-Rheims Bible
In this we know that we are of the truth and in his sight shall persuade our hearts.

In this we know that we are of the truth and in his sight shall persuade our hearts.

hereby.

1 John 3:14 We know that we have passed from death to life, because we love the brethren. He that loveth not abideth in death.

1 John 1:8 If we say that we have no sin, we deceive ourselves and the truth is not in us.

John 13:35 By this shall all men know that you are my disciples, if you have love one for another.

John 18:37 Pilate therefore said to him: Art thou a king then? Jesus answered: Thou sayest that I am a king. For this was I born, and for this came I into the world; that I should give testimony to the truth. Every one that is of the truth heareth my voice.

shall.

1 John 3:21 Dearly beloved, if our heart do not reprehend us, we have confidence towards God.

Isaiah 32:17 And the work of justice shall be peace, and the service of justice quietness, and security for ever.

Hebrews 6:10,11 For God is not unjust, that he should forget your work and the love which you have shewn in his name, you who have ministered and do minister to the saints. . . .

Hebrews 10:22 Let us draw near with a true heart, in fulness of faith, having our hearts sprinkled from an evil conscience and our bodies washed with clean water.

assure.

Romans 4:21 Most fully knowing that whatsoever he has promised, he is able also to perform.

Romans 8:38 For I am sure that neither death, nor life, nor angels, nor principalities, nor powers, nor things present, nor things to come, nor might,

2 Timothy 1:12 For which cause, I also suffer these things: but I am not ashamed. For I know whom I have believed and I am certain that he is able to keep that which I have committed unto him, against that day.

Hebrews 11:13 All these died according to faith, not having received the promises but beholding them afar off and saluting them and confessing that they are pilgrims and strangers on the earth.