'Sincere' in the Bible
"The eye is the lamp of the body. Therefore if your eye is sincere, your whole body will be full of light.
They sent their disciples to him along with the Herodians. They said, "Teacher, we know that you are sincere and that you teach the way of God truthfully. You don't favor any individual, because you pay no attention to external appearance.
They came and told him, "Teacher, we know that you are sincere. You don't favor any individual, because you pay no attention to external appearance. Rather, you teach the way of God truthfully. Is it lawful to pay taxes to Caesar or not? Should we pay them or shouldn't we?"
Your eye is the lamp of the body. When your eye is sincere, your whole body is full of light also. But when it is evil, your body [is] dark also.
Then they watched him carefully and sent spies who pretended to be sincere. They wanted to take advantage of what he might say so that they could deliver him up to the authority and jurisdiction of the governor.
Love is to be sincere and active [the real thing—without guile and hypocrisy]. Hate what is evil [detest all ungodliness, do not tolerate wickedness]; hold on tightly to what is good.
So let's keep celebrating the festival, neither with old yeast nor with yeast that is evil and wicked, but with yeast-free bread that is both sincere and true.
My love be with all of you in Christ Jesus. Amen.
by purity, by knowledge,by patience, by kindness,by the Holy Spirit, by sincere love,
However, I am afraid that just as the serpent deceived Eve by its tricks, so your minds may somehow be lured away from sincere and pure devotion to the Messiah.
That ye may approve things that are excellent; that ye may be sincere and without offence till the day of Christ;
Slaves, obey your earthly masters in everything, not only while being watched in order to please them, but with a sincere heart, fearing the Lord.
Now the goal of our instruction is love that comes from a pure heart, a good conscience, and a sincere faith.
Deacons likewise must be men worthy of respect [honorable, financially ethical, of good character], not double-tongued [speakers of half-truths], not addicted to wine, not greedy for dishonest gain,
clearly recalling your sincere faith that first lived in your grandmother Lois, then in your mother Eunice, and that I am convinced is in you also.
let us continue to come near with sincere hearts in the full assurance that faith provides, because our hearts have been sprinkled clean from a guilty conscience, and our bodies have been washed with pure water.
By obedience to the truth, having purified yourselves for sincere love of the brothers, love one another earnestly from a pure heart,
As newborn babes, desire the sincere milk of the word, that ye may grow thereby:
This is now, beloved, the second letter I am writing to you in which I am stirring up your sincere mind by way of reminder,