What does the Bible teach about human inability to come to Christ?

The doctrine of total depravity informs us that humanity is spiritually dead in their sins and cannot seek God or come to Christ on their own. John 11 illustrates this as Lazarus is entirely unable to respond until Jesus calls him. Similarly, in Ephesians 2:1, Paul states that apart from Christ, we are dead in our trespasses. Thus, it is only through God's sovereign grace that we are made alive and capable of responding to the Gospel. The passage underlines the necessity of divine intervention in the heart of a sinner, demonstrating that only when God moves on a person's heart do they have the ability to believe and come to Him.