1 John 2:4

If anyone says, “I know Him,” but does not keep His commandments, he is a liar, and the truth is not in him.

Berean Standard Bible
Other translations

King James Version

He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him.

World English Bible

One who says, “I know him,” and doesn’t keep his commandments, is a liar, and the truth isn’t in him.

American Standard Version

He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him;

Geneva Bible 1599

Hee that saith, I knowe him, and keepeth not his commandements, is a liar, and the trueth is not in him.

Darby Translation

He that says, I know him, and does not keep his commandments, is a liar, and the truth is not in him;

Young's Literal Translation

he who is saying, 'I have known him,' and his command is not keeping, a liar he is, and in him the truth is not;

Bible in Basic English

The man who says, I have knowledge of him, and does not keep his laws, is false, and there is nothing true in him:

In context

3By this we can be sure that we have come to know Him: if we keep His commandments.

5But if anyone keeps His word, the love of God has been truly perfected in him. By this we know that we are in Him:

Read 1 John 2