Deuteronomy 5
v1-5: Moses calls the people of Israel to "listen and obey, hear and remember, hear, so that [they] may learn, keep, and do." This reminds us that whenever "we hear the word of God, we must set ourselves to learn it, that it may be available to us" to use "on all occasions." We are "not to fill our heads with ideas or our mouths with mere talk," but use what we have learned to "direct what we set our hearts on and how we live."
v6-22: The 10 Commandments, though "spoken and written before" are repeated. "We need to constantly receive God's detailed commands and instructions" and "have the same things instilled in us." The significant difference between this account and the previous one is found in the fourth commandment. The Israelites are told to honour God by what they "do on the Sabbath, in the religious services of that day, considering the great things he has done for" them, as it for us on the Lord's Day, considering what Christ has done to save us.
v23-33: It was right for the Israelites to acknowledge their need "of a mediator between them and God," as it is right for us to acknowledge our need for Christ to be the mediator between us and God. It was also right that they desired "to receive further directions from God through Moses," and for them to "promise to observe the directions that were to be given them." In the same way, we should desire to be taught by Christ in His Word and commit to obey everything He has commanded. What is right "will have its praise with God, and should also have a [good] effect on us," as "the only way to be [truly] happy is to be holy."