And He [that same Jesus Himself] is the propitiation (the atoning sacrifice) for our sins, and not for ours alone but also for [the sins of] the whole world.
And [besides] we ourselves have seen (have deliberately and steadfastly contemplated) and bear witness that the Father has sent the Son [as the] Savior of the world.
For Christ [the Messiah Himself] died for sins once for all, the Righteous for the unrighteous (the Just for the unjust, the Innocent for the guilty), that He might bring us to God. In His human body He was put to death, but He was made alive in the spirit,
He personally bore our sins in His [own] body on the tree [as on an altar and offered Himself on it], that we might die (cease to exist) to sin and live to righteousness. By His wounds you have been healed.
And they told the woman, Now we no longer believe (trust, have faith) just because of what you said; for we have heard Him ourselves [personally], and we know that He truly is the Savior of the world, the Christ.
But if we [really] are living and walking in the Light, as He [Himself] is in the Light, we have [true, unbroken] fellowship with one another, and the blood of Jesus Christ His Son cleanses (removes) us from all sin and guilt [keeps us cleansed from sin in all its forms and manifestations].
And the huge dragon was cast down and out–that age-old serpent, who is called the Devil and Satan, he who is the seducer (deceiver) of all humanity the world over; he was forced out and down to the earth, and his angels were flung out along with him. [Gen. 3:1, 14, 15; Zech. 3:1.]
But the goat on which the lot fell for Azazel or removal shall be presented alive before the Lord to make atonement over him, that he may be let go into the wilderness for Azazel (for dismissal).
So it is evident that it was essential that He be made like His brethren in every respect, in order that He might become a merciful (sympathetic) and faithful High Priest in the things related to God, to make atonement and propitiation for the people's sins.