Hebrews 1:3 N-GFS
BIB: χαρακτὴρ τῆς ὑποστάσεως αὐτοῦ φέρων
NAS: and the exact representation of His nature, and upholds
KJV: of his person, and
INT: [the] exact expression of the substance of him upholding

Hebrews 3:14 N-GFS
BIB: ἀρχὴν τῆς ὑποστάσεως μέχρι τέλους
NAS: the beginning of our assurance firm
KJV: the beginning of our confidence stedfast
INT: beginning of the assurance unto [the] end