How does God keep His people according to the sermon?

The sermon emphasizes that God's grace is not only pivotal in the initial act of salvation but also crucial for the ongoing preservation of believers. According to John 10:27-29, Jesus assures that none of His sheep will be lost, highlighting His active role in sustaining the faith of His people. This divine keeping is motivated by God's faithfulness and power, which assures believers that they will persevere to the end, not due to their strength but because of His all-sufficient grace.