Deuteronomy 10:12-13 And now, Israel, what doth the Lord thy God require of thee, but to fear the Lord thy God, to walk in all his ways, and to love him, and to serve the Lord thy God with all thy heart and with all thy soul, To keep the commandments of the Lord, and his statutes, which I command thee this day for thy good?
The Lord God had made a covenant with Israel: “This is what I have done for you, now in response this is what you will do for Me.” Moses recounts the second time God Himself wrote the Ten Words on tables of stone (Moses broke the first copy in the Golden Calf incident), and he placed them in the Ark of the Covenant.
After the Lord saved them and made them His people by Grace, their part of the covenant was to keep the ten stipulations. This what the Lord requires as a response to His Great Salvation: 1) Fear (believe) the Lord, 2) Walk (live) in His ways, 3) Love (be exclusively devoted to) Him, 4) Serve (surrender yourself for the good of others) the Lord by serving others, since God doesn’t need your service but others do, and 5) Keep (obey) the commandments, do what He says.
Our response to the Gospel encompasses all of life and all that we are (heart and soul). We hold nothing back, not reserving a minute for self, nor reserving a part of the soul for self. We die to self daily and live in Christ by faith always.
In truth, our response is pitiful. We woefully fail to live this way. But Jesus Christ faithfully laid down His Life for us, thereby forgiving our failure and granting complete success. Faith receives this grace gift in response to the Gospel, which changes our behavior and lifestyle.