1 John 2:3

And by this, we know that we have known him, if we keep his commandments.

1 John 4:13

By this, we know that we abide in him, and he in us, because he has given us of his Spirit.

1 John 5:3

For this is the love of God, that we keep his commandments: and his commandments are not burdensome;

1 John 2:4-6

He who says, I have known him, and does not keep his commandments, is a liar, and the truth is not in this man.

1 John 3:14

We know that we have passed away from death to life, because we love the brethren. He who loves not his brother, abides in death.

1 John 3:19

For by this we know that we are of the truth, and shall assure our hearts before him.

1 John 3:22-24

And whatever we ask, we receive from him; because we keep his commandments, and do the things which are pleasing in his sight.

1 John 5:19

We know that we are of God, and that the whole world lies under the wicked one.

Revelation 22:14

(Happy are they who keep his commandments, that they may have the privilege to eat of the tree of life; and they shall enter by the gates into the city.

Treasury of Scripture Knowledge

Summary

And hereby we do know that we know him, if we keep his commandments.

Bible References

Hereby

1 John 2:4
He who says, I have known him, and does not keep his commandments, is a liar, and the truth is not in this man.
1 John 3:14
We know that we have passed away from death to life, because we love the brethren. He who loves not his brother, abides in death.
1 John 4:13
By this, we know that we abide in him, and he in us, because he has given us of his Spirit.
1 John 5:19
We know that we are of God, and that the whole world lies under the wicked one.

If we

1 John 3:22
And whatever we ask, we receive from him; because we keep his commandments, and do the things which are pleasing in his sight.
1 John 5:3
For this is the love of God, that we keep his commandments: and his commandments are not burdensome;
Revelation 22:14
(Happy are they who keep his commandments, that they may have the privilege to eat of the tree of life; and they shall enter by the gates into the city.