Noah was moved with awe, with profound and deep respect for God. He believed and was moved by that faith which here is called the fear of the Lord. It is faith in God, faith in His Son Who died for our sins, that causes us to look at what lies in the future, but also assures us that we will escape the flood of God's wrath that will punish the ungodly world like it did in that flood of Noah's day. The awesome truth presented to us in Hebrews 11 is that everything that we find written therein about the giants of faith must be found in us. Some call these men heroes of faith, but we should not do that.
Heroes are men who are praised because of what they did.
Giants are men whom it pleased God to make taller other men. God decides how tall each one of us will be. Each one of us is exactly as tall as it pleased God to make him. And in Hebrews 11 we have these men who were such spiritual giants in the sense that they had great faith, and were strong believers by God's grace. None of us has yet been in God's house of many mansions.