A.T. Robertson Commentary Hebrews 11:7

"By faith Noah, being warned [of God] concerning things not seen as yet, moved with godly fear, prepared an ark to the saving of his house; through which he condemned the world, and became heir of the righteousness which is according to faith." — Hebrews 11:7 (ASV)

Being warned of God (χρηματισθεις). First aorist passive participle of χρηματιζω, old word for oracular or divine communications as already in 8:5 (cf. Matthew 2:12,22, etc.).

Moved with godly fear (ευλαβηθη). First aorist passive indicative of ευλαβεομα, old verb from ευλαβης (from ευ and λαβειν, to take hold well or carefully), to show oneself ευλαβης, to act circumspectly or with reverence, here only in N.T. (save Textus Receptus in Ac 23:10), often in LXX.

An ark (κιβωτον). Genesis 6:15; Matthew 24:38. Shaped like a box (cf. Hebrews 9:4).

Through which (δι' ης). Through his faith as shown in building the ark.

The world (τον κοσμον). Sinful humanity as in verse 38.Heir (κληρονομος). In 2 Peter 2:5 Noah is called "a preacher of righteousness" as here "heir of righteousness." He himself believed his message about the flood. Like Enoch he walked with God (Genesis 6:9).