Bible Verses About Sincerity: should Characterise: Our Love to One Another

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

Seeing ye have purified your souls in obeying the truth through the Spirit unto unfeigned love of the brethren, see that ye love one another with a pure heart fervently:

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