How do we know that God uses men as messengers?

Scripture reveals that God uses ordinary men as His messengers to convey the gospel and His truths. For instance, Paul identifies himself as a servant of Christ, signaling that God can work through anyone, including sinners, to fulfill His divine purpose. When Philip preached to the Ethiopian eunuch, it underscored that God often sends men to guide others into the truth. This reinforces the idea that God's plan involves the proclamation of His word through human vessels, emphasizing our dependency on His grace throughout this process.