How does God choose those He uses for His purposes?

Throughout Scripture, God frequently selects individuals who appear unqualified or insignificant for His greater plans, such as Amos, who was a herdsman called to prophesy. This theme underscores the biblical truth that God uses the weak and foolish things to confound the wise (1 Corinthians 1:26-29). God's choice of humble and unlikely servants highlights His desire that no flesh should glory in His presence, demonstrating that it is solely by His grace and power that any person can be used for His glory.