How does God preserve His children according to the sermon?

God's preservation of His children is rooted in His unchanging faithfulness, as depicted throughout Scripture. The sermon illustrates that believers are kept by God's power, and their faith is a gift from Him, ensuring they will not be lost. This preservation is vividly illustrated through the example of Eutychus, who, despite his fall, was raised to life, illustrating how God actively preserves and restores His people, pointing to His ultimate covenant promises. It's by recognizing our unworthiness and relying on His grace that we can appreciate the assurance of our preservation.