Hebrews 2:5-8, 14

For God will not place the coming world, of which we speak, under the government of angels. But the Scriptures affirm: What is man that you would even think about him, or care about Adam’s race. You made him lower than the angels for a little while. You placed your glory and honor upon his head as a crown. And you have given him dominion over the works of your hands, For you have placed everything under his authority.

Since all his “children” have flesh and blood, so Jesus became human to fully identify with us. He did this, so that he could experience death and annihilate the effects of the intimidating accuser who holds against us the power of death.