How does God's grace sustain believers through trials?

In his ministry, Paul affirmed that it is the grace of God that allows believers to endure hardships and trials. In 2 Timothy 4:6-8, Paul speaks of finishing the race 'by the grace of God,' illustrating that it is by divine strength that he was able to remain faithful. The recognition that our endurance is not self-generated but is sustained through grace fosters a deeper reliance on God's provision. This grace manifests as comfort, courage, and the ability to persevere through life's challenges, affirming that God is at work in us both to will and to act in accordance with His purpose (Philippians 2:13).