'Substance' in the Bible

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;

For if we keep the substance of the faith which we had at the start, even till the end, we have a part with Christ;

Now faith is the substance of things hoped for, and the sign that the things not seen are true.