Common misinterpretations of this verse include reducing Christ's 'brightness of his glory' and 'express image of his person' to a mere human reflection or symbolic representation rather than affirming His full equality with God in essence, denying His preexistence by interpreting 'upholding all things by the word of his power' as the work of a created intermediary instead of the Creator Himself, minimizing the atonement by suggesting 'by himself purged our sins' implies a solitary act excluding divine cooperation or full efficacy, or viewing His session at God's right hand as a temporary promotion earned through obedience rather than an eternal position of divine sovereignty.
Hebrews 1:3
King James Version (1769)
3 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 on the right hand of the Majesty on high;
Hebrews 1:3 powerfully declares the divine nature and accomplishments of Jesus Christ, depicting Him as the radiant outshining of God's glory, the precise imprint of God's very being, the omnipotent sustainer who upholds the entire universe by the word of His power, the singular agent who accomplished atonement for our sins through His own sacrifice, and the exalted Sovereign now seated at the right hand of the Majesty on high, thereby establishing Christ's eternal deity, mediatorial role, and supreme authority.