§ 02 · King James Bible
Hebrews 2:17
Wherefore in all things it behoved him to be made like unto his brethren, that he might be a merciful and faithful high priest in things pertaining to God, to make reconciliation for the sins of the people.
Simple English
So, he had to be similar to us in everything, to be a kind and loyal leader in matters related to God, helping to forgive people's mistakes.
* Work in progress - there may be occasional inaccuracies