Substance –Why is the word  Substance in some Bibles  Answer it supports  Christendom.htm

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Latin Vulgate
1:3 qui cum sit splendor gloriae et figura substantiae eius portansque omnia verbo virtutis suae purgationem peccatorum faciens sedit ad dexteram Maiestatis in excelsis

King James Version
1:3 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;

American Standard Version
1:3 who being the effulgence of his glory, and the very image of his substance, and upholding all things by the word of his power, when he had made purification of sins, sat down on the right hand of the Majesty on high;

Bible in Basic English
1:3 Who, being the outshining of his glory, the true image of his substance, supporting all things by the word of his power, having given himself as an offering making clean from sins, took his seat at the right hand of God in heaven;

Darby's English Translation
1:3 who being the effulgence of his glory and the expression of his substance, and upholding all things by the word of his power, having made by himself the purification of sins, set himself down on the right hand of the greatness on high,

Douay Rheims
1:3 Who being the brightness of his glory, and the figure of his substance, and upholding all things by the word of his power, making purgation of sins, sitteth on the right hand of the majesty on high.

Noah Webster Bible
1:3 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 made purification of our sins, sat down on the right hand of the Majesty on high;

Weymouth New Testament
1:3 He brightly reflects God's glory and is the exact representation of His being, and upholds the universe by His all-powerful word. After securing man's purification from sin He took His seat at the right hand of the Majesty on high,

World English Bible
1:3 His Son is the radiance of his glory, the very image of his substance, and upholding all things by the word of his power, when he had by himself made purification for our sins, sat down on the right hand of the Majesty on high;

Young's Literal Translation
1:3 who being the brightness of the glory, and the impress of His subsistence, bearing up also the all things by the saying of his might -- through himself having made a cleansingg of our sins, sat down at the right hand of the greatness in the highest,