Motives of men's hearts

John 6:37
All that the Father gives me will come to me, and whoever comes to me I will never drive away.

Matthew 7:14
But small is the gate and narrow the road that leads to life, and only a few find it.

I Corinthians Chapter 4 (Words of Paul to the church of Corinth)

So then, men ought to regard us as servants of Christ and as those entrusted with the secret things of God. Now it is required that those who have been given a trust must prove faithful. I care very little if I am judged by you or by any human court; indeed, I do not even judge myself. My conscience is clear, but that does not make me innocent. It is the Lord who judges me. Therefore judge nothing before the appointed time; wait till the Lord comes. He will bring to light what is hidden in darkness and will expose the motives of men's hearts. At that time each will receive his praise from God.
Now, brothers, I have applied these things to myself and Apollos for your benefit, so that you may learn from us the meaning of the saying, "Do not go beyond what is written." Then you will not take pride in one man over against another. For who makes you different from anyone else? What do you have that you did not receive? And if you did receive it, why do you boast as though you did not?
Already you have all you want! Already you have become rich! You have become kings—and that without us! How I wish that you really had become kings so that we might be kings with you! For it seems to me that God has put us apostles on display at the end of the procession, like men condemned to die in the arena. We have been made a spectacle to the whole universe, to angels as well as to men. We are fools for Christ, but you are so wise in Christ! We are weak, but you are strong! You are honored, we are dishonored! To this very hour we go hungry and thirsty, we are in rags, we are brutally treated, we are homeless. We work hard with our own hands. When we are cursed, we bless; when we are persecuted, we endure it; when we are slandered, we answer kindly. Up to this moment we have become the scum of the earth, the refuse of the world.
I am not writing this to shame you, but to warn you, as my dear children. Even though you have ten thousand guardians in Christ, you do not have many fathers, for in Christ Jesus I became your father through the gospel. Therefore I urge you to imitate me.

Galatians 4:19
My dear children, for whom I am again in the pains of childbirth until Christ is formed in you.

I Corinthians 15:50-58 (Words of Paul to the church of Corinth)

I declare to you, brothers, that flesh and blood cannot inherit the kingdom of God, nor does the perishable inherit the imperishable. Listen, I tell you a mystery: We will not all sleep, but we will all be changed— in a flash, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, the dead will be raised imperishable, and we will be changed. For the perishable must clothe itself with the imperishable, and the mortal with immortality. When the perishable has been clothed with the imperishable, and the mortal with immortality, then the saying that is written will come true: "Death has been swallowed up in victory."

"Where, O death, is your victory?

Where, O death, is your sting?"
The sting of death is sin, and the power of sin is the law. But thanks be to God! He gives us the victory through our Lord Jesus Christ.
Therefore, my dear brothers, stand firm. Let nothing move you. Always give yourselves fully to the work of the Lord, because you know that your labor in the Lord is not in vain.

Romans 5:20-21
The law was added so that the trespass might increase. But where sin increased, grace increased all the more, so that, just as sin reigned in death, so also grace might reign through righteousness to bring eternal life through Jesus Christ our Lord.