How do we know that God's mercy sustains us?

The sustaining mercy of God is essential for believers, as it allows them to navigate the challenges of life. In the sermon, it is noted that just as Elijah was fed with bread for his journey, Christians are called to continually partake of Christ, the living bread. John 6:51 emphasizes that when Jesus states, 'I am the living bread which came down from heaven,' He assures us that partaking in Him grants us eternal life and sustenance. Therefore, God's mercy is not a one-time act but a continuous provision that empowers us on our spiritual journey.