What does it mean to be disobedient to the Word?

Disobedience to the Word signifies a refusal to accept the teachings and authority of God as revealed in Scripture. In the sermon, it's noted that such disobedience leads individuals to stumble over the cornerstone, which is Christ Himself. This disobedience has serious implications, as it indicates a hardened heart towards the truth and ultimately separates one from the blessings promised to believers. It reflects a spiritual state that is in direct rebellion against the authority of God.