Hebrews 1:1-3: God, who at various times and in various ways spoke in time past to the fathers by the prophets, has in these last days spoken to us by His Son, whom He has appointed heir of all things, through whom also He made the worlds; who being the brightness of His glory and the express image of His person, and upholding all things by the word of His power, when He had by Himself purged our sins, sat down at the right hand of the Majesty on high,
Hebrews begins with an idea basic to the Bible: God exists, and He speaks to man. Throughout the ages, God at specific times had spoken to chosen ones. Each encounter was different. The revelation given through the prophets was brought in various ways – sometimes through parables, prophecy, psalms, proverbs, and the like. God spoke to Moses by a burning bush, to Elijah by a still, small voice, to Isaiah by a heavenly vision.
Verse 2 says, In these last days Spoken to us by His Son. It isn’t so much that Jesus brought a message from the Father; He is a message from the Father. The Son doesn’t speak in Hebrews; the Father speaks concerning the Son. The book of Hebrews is the Father telling us what the Son is all about.
In His earthly ministry, Jesus constantly demonstrated the power of His word. He could heal, forgive, cast out demons and calm nature, by simply speaking one word.
Verse 3 tells us he Himself purged our sins and sat down at the right hand of the Majesty on high. His position alone set Him above all angels. After Jesus provided the forgiveness of our sins by His death on the cross, He took His place of authority at the right hand of God. Nothing has greater authority than Christ. He’s the only way to eternal salvation and the only mediator between God and man.
Jesus did it all for us and went and sat down at the Father’s right side. He sat down because He finished the job. In fact, it was finished when Jesus made that statement from the cross - it is finished. No one or nothing else purchased our salvation for us, Jesus did it all.