“Now Adam knew Eve his wife, and she conceived and bore Cain, and said, ‘I have gotten a man from the Lord.’ Then she bore again, this time his brother Abel. Now Abel was a keeper of sheep, but Cain was a tiller of the ground. And in the process of time it came to pass that Cain brought an offering of the fruit of the ground to the Lord. Abel also brought of the firstlings of his flock and of their fat. And the Lord respected Abel and his offering, but He did not respect Cain and his offering. And Cain was very angry, and his countenance fell.” Genesis 4:1-5.
“And you have forgotten the exhortation which speaks to you as to sons: ‘My son, do not despise the chastening of the Lord, nor be discouraged when you are rebuked by Him; for whom the Lord loves He chastens [disciplines], and scourges every son whom He receives.’ If you endure chastening, God deals with you as with sons; for what son is there whom a father does not chasten? But if you are without chastening, of which all have become partakers, then you are illegitimate and not sons. Furthermore, we have had human fathers who corrected us, and we paid them respect. Shall we not much more readily be in subjection to the Father of spirits and live? For they indeed for a few days chastened us as seemed best to them, but He for our profit, that we may be partakers of His holiness. Now no chastening seems to be joyful for the present, but painful; nevertheless, afterward it yields the peaceable fruit of righteousness to those who have been trained by it.” Hebrews 12:5-11.