The Lord shut him in. Genesis 7:16
Noah was so shut in that no evil could reach him. Floods did but lift him heavenward, and winds did but waft him on his way. Outside of the ark all was ruin, but inside all was rest and peace. Without Christ we perish, but in Christ Jesus there is perfect safety. Noah was so shut in that he could not even desire to come out, and those who are in Christ Jesus are in him forever. --Spurgeon
Oh to be shut in like Noah. To be so hemmed in by the Word and Truth of God, the knowledge of His character and goodness, the testimony of His faithfulness in times past, that no storm, no wind, no frightening or hurtful thing can shake our confidence in the Lord. Wind and storms and floods and frightening and hurtful circumstances are real...very real...but the One who commands them is even more so, and even more powerful. Is not the Master more powerful, and ultimately in control of, the servant? These climactic, devastating, and difficult things are but servants of His will and will only shake or destroy that which stands in the way of His glory...that which needs to be cut off and cast in the proverbial fire.
Oh to be shut in like Noah. To be resolved like Job that even death would not stem the tide of his praise, to be content like Paul to suffer for the sake of knowing Christ and Him crucified, to be like Him who died, who endured far more than we ever will for the joy set before Him.