Why is preaching the Word important for receiving God's help?

In Acts 16, the Lord helps His people through the preaching of the Word, exemplified in the conversion of Lydia. The preaching serves to call people to faith and aligns their hearts with God's truth. As noted in Romans 10:17, 'Faith comes by hearing, and hearing by the Word of God.' The act of preaching is instrumental in God's plan of salvation, as it is through the proclamation of the gospel that He opens people's hearts to receive His message. Consequently, when individuals are present for the preaching of the Word, as Lydia was, they position themselves to experience God's grace and understanding.