'Efforts' in the Bible

So if this is the way You are going to deal with me, please kill me at once, if I have found favor in your sight, and do not let me see my wretchedness.”

He who increases his wealth by interest and usury (excessive interest)Gathers it for him who is gracious to the poor.

So I turned aside and let my heart despair over all the fruit of my labor for which I had labored under the sun.

Then the Pharisees [argued and] said to one another, “You see that your efforts are futile. Look! The whole world has gone [running] after Him!”

or, ‘Who will descend into the abyss?’ that is, to bring Christ up from the dead [as if we had to be saved by our own efforts, doing the impossible].”

If any person’s work which he has built [on this foundation, that is, any outcome of his effort] remains [and survives this test], he will receive a reward.

For who regards you as superior or what sets you apart as special? What do you have that you did not receive [from another]? And if in fact you received it [from God or someone else], why do you boast as if you had not received it [but had gained it by yourself]?