By faith Noah, when warned about things not yet seen, in holy fear built an ark to save his family. – Hebrews 11:7
The only reason Noah was saved from death is because he believed what God said about a flood and the ark (a boat) he had to build.
How are we saved?
The same way as Noah was saved. We must also believe what God says in His Word: Jesus Christ, His Son, is the only One who can save us from the coming judgment. The flood was an image of this. Jesus Christ is the ark who is able to save us.
The plan to save Noah through an ark came from God Himself. ‘Noah was a righteous man, blameless among the people of his time, and he walked faithfully with God… So make yourself an ark of cypress wood; make rooms in it and coat it with pitch inside and out’ (Genesis 6:9,14).
We clearly read here that this plan was not a human thought. The plan to save us and secure us in the ark Jesus Christ also comes from God, from Him alone.
He is a wonderful and loving God. He wants to protect those who walk righteously before Him in bad times. It is the great grace of God that He wants to save us from judgment.
All we have to do is:
1) regret our sins;
2) repent and obey God;
3) believe in the truth of the gospel that the blood of Jesus Christ cleanses us from all sins.
The people at that time thought Noah was crazy. He was mocked and laughed at.
Noah was saved by believing the Word of God about things not seen yet. In the same way we, based on the Word of God, must believe the Lord Jesus and accept Him as our Savior.