Why is holding fast to Christ essential for salvation?

In Hebrews 3:6, we are reminded that Christ is faithful over God's house, and that we are His house if we hold fast our confidence and the boast of our hope firm to the end. This holding fast is an indication of genuine faith—faith that perseveres despite trials and the temptations of this world. It reflects a deep-seated trust that Jesus is not only our Savior but also our ongoing source of strength and assurance. The call to hold fast is a call to remain steadfast in our commitment to Christ, demonstrating that our salvation is secure, not by our works, but by our continual faith in Him.