The concept of Jesus being our High Priest was introduced toward the end of Hebrews chapter two (2:17, 3:1). There it is said that the Son of God had to made like His brethren (that is become flesh) that He might be a merciful and faithful High Priest in the things pertaining to God. Jesus made propitiation for our sins by offering Himself as the sacrifice. Ultimately, in order for man to be forgiven of his sins, a perfect man must die for those sins. Though perfect, Jesus was tempted during His life, and therefore as our High Priest He is able to help us when we are tempted.
In Hebrews 4:14-16 the writer returned to the theme of Jesus Christ’s high priestly ministry. He reminds us that we have a High Priest who can sympathize with our weaknesses for Jesus was tempted in all points as we are yet without sin (15). We have a sympathetic High Priest in heaven before Whom we can come boldly that we may obtain mercy and find grace to help in time of need. We need grace to help us endure temptation and to help us hold fast our confidence or faith in Christ firm to the end. It is in fact because we have a great High Priest who has passed through the heavens that we are urged to hold fast our confession (14). There is mercy if we should stumble along the way, and grace to help us get back up and continue faithfully following Him. Because Jesus’ high priestly ministry is eternal and unchangeable (Heb.7:23-24), we can be confident that He will bring us all the way to heaven to be with Him!

Therefore, He is also able to save to the uttermost those who come to God through Him, since He always lives to make intercession for them (Hebrews 7:25).