Albert Barnes' Notes on the Whole Bible - Hebrews 6:13
For when God made promise to Abraham - That he would bless him, and multiply his seed as the stars of heaven; Genesis 22:16-17. The object of introducing this example here is, to encourage those to whom the apostle was writing to persevere in the Christian life, This he does by showing that God had given the highest possible assurance of his purpose to bless his people, by an oath. Reference is made to Abraham in this argument, probably, for two reasons:To show the nature of the evidence which... read more
The Pulpit Commentary - Hebrews 6:13-20
The encouragements to cherish the hope of eternal life. These assume that there is a strong disposition in men to doubt the veracity of the Divine promise, and in adorable condescension God gives us ample evidence to justify our faith and perseverance. It must be confessed that the abandonment of the Jewish Law, separation from the synagogue, the surrender of earthly pleasure, and submission to manifold trials, require varied reasons to convince and to maintain the conviction of the claims... read more