“Then the Lord saw that the wickedness of man was great in the earth, and that every intent of the thoughts of his heart was only evil continually.” Genesis 6:5.
“I will leave in your midst a meek and humble people, and they shall trust in the name of the Lord. The remnant of Israel shall do no unrighteousness and speak no lies, nor shall a deceitful tongue be found in their mouth; for they shall feed their flocks and lie down, and no one shall make them afraid.” Zephaniah 3:12-13.
How do we know what is good? The Bible tells us that God is good. In fact, it speaks of His goodness throughout Scripture.
“The Lord is good to those who wait for Him, to the soul who seeks Him. It is good that one should hope and wait quietly for the salvation of the Lord.” Lamentations 3:25-26.
“Then He [Jesus] said to them, ‘My soul is exceedingly sorrowful, even to death. Stay here and watch with Me.’ He went a little farther and fell on His face, and prayed, saying, ‘O My Father, if it is possible, let this cup pass from Me; nevertheless, not as I will, but as You will.’ Then He came to the disciples and found them asleep, and said to Peter, ‘What, could you not watch with Me one hour? Watch and pray, lest you enter into temptation. The spirit indeed is willing, but the flesh is weak.’ He went away again a second time and prayed, saying, ‘O My Father, if this cup cannot pass away from Me unless I drink it, Your will be done.’ And He came and found them asleep again, for their eyes were heavy. So He left them, went away again, and prayed the third time, saying the same words. Then He came to His disciples and said to them, ‘Are you still sleeping and resting? Behold, the hour is at hand, and the Son of Man is being betrayed into the hands of sinners. Rise, let us be going. See, he who betrays Me is at hand.’” Matthew 26:38-46.