How do we know that God uses weak instruments?

In Exodus 7, God chooses Moses, who is 80 years old and described as a man reluctant and doubtful of his abilities. This choice highlights that God uses flawed and weak instruments to accomplish His plans, ensuring that the glory of the work belongs solely to Him. As Paul writes in 2 Corinthians 12:9, 'My grace is sufficient for you, for my power is made perfect in weakness.' This principle emphasizes the truth that God delights in using those who may seem inadequate, demonstrating that the effectiveness of His work does not depend on human strength but on divine grace. This understanding shapes our view of ministry and God’s work today.