This is what Jesus meant,why do you call Me good.Jesus is fully God,and fully man,for He is God manifest in the flesh.
Now we know Jesus is good,so why did He say that.
Jesus was saying why call Me good,for there is one that is good,and that is God,meaning I am only good because God causes Me to be good,giving glory to God why He can go about doing good,and not glory to Himself.
That is because the man appraoched Jesus,not recognizing His deity,but approached Him as a man,so the man Christ Jesus gave glory to God for why He can go about doing good.
If the man would of approached Jesus recognizing His deity,and relating to Him according to His deity,Jesus would of said,you are right,I am good.