Which is the most important chapter in the Bible and why?

Answer 1

The Bible is a library of 66 Books. It helps us to understand our past, present and future. It all depends on what you are looking for.

The Holy Bible is God's written communication to all of us. We must study it to get to know its Author. John 17: 3; 2 Timothy 3: 16.

Within its pages, Jehovah God reveals his purpose for humans and for their earthly home.-- Genesis 3: 15; Revelation 21: 3, 4

No other book has such an impact on people's lives. The bible inspires us to reflect Jehovah God's qualities of love, mercy, and compassion. It gives hope, helping people to endure even the worst suffering. And it continues to expose the elements of this world that are out of harmony with the perfect will of God. -- Psalm 119: 105; Hebrew 4: 12; 1 John 2: 15-17.

So to answer your question of what is most important. The answer is: The most important is, to live up to God's standards, because it is lifesaving, confirmed in John 17:3

Answer 2

I think that it is Matthew because that is the first time in the Bible that it talks about Jesus being born and dying for our sins.