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.
“Now as He was going out on the road, one came running, knelt before Him, and asked Him, ‘Good Teacher, what shall I do that I may inherit eternal life?’ So Jesus said to him, ‘Why do you call Me good? No one is good but One, that is God.’” Mark 10:17-18.
“For He [God] made Him [Jesus] who knew no sin to be sin for us [on the cross], that we might become the righteousness of God in Him.” 2 Corinthians 5:21.
“…[God] who is the blessed and only Potentate, the King of kings and Lord of lords, who alone has immortality, dwelling in unapproachable light, whom no man has seen or can see, to whom be honor and everlasting power. Amen.” 1 Timothy 6:15b-16.