How do we know God's effectual calling is true?

God's effectual calling indicates that He calls His people in such a way that they cannot resist His grace. Romans 8:30 affirms this truth, stating that those whom He predestined He also called. The evidence of this calling is seen in the lives of believers who, once dead in sin, are now made alive in Christ and exhibit faith as a result of their calling. This transformation aligns with scripture such as Ephesians 2:1-5, which illustrates how God brings the dead to life. Therefore, the reality of transformed lives serves as a testament to the truth of God's effectual calling.