He received a message from God (Genesis 6:11–21; Genesis 6:22 mentions the obedience of Noah). The same word is used in Hebrews 8:5 concerning the instruction that God gave to Moses about the tent of worship. And Noah, in reverent fear, constructed an ark (Hebrews 11:7). He began building on dry land without a flood in sight. But Noah did not start to criticize or question God. He had reverence for the Lord; the NIV translates it as holy fear.
The same word is used in Hebrews 5:7 when Jesus offered up prayers and supplications, with loud cries and tears, [in Gethsemane] to him who was able to save him from death, and he was heard because of his reverence.
Reverence is the attitude of the righteous one.
7 C'est par la foi que Noé, divinement averti des choses qu'on ne voyait pas encore, et saisi d'une crainte respectueuse, construisit une arche pour sauver sa famille; c'est par elle qu'il condamna le monde, et devint héritier de la justice qui s'obtient par la foi.