Bible Verses About Sincerity: Our love to one another

Let love be without hypocrisy. Abhor that which is evil; cleave to that which is good.

Seeing ye have purified your souls in your obedience to the truth unto unfeigned love of the brethren, love one another from the heart fervently:

My little children, let us not love in word, neither with the tongue; but in deed and truth.