But where does Rabbi Shaul get this expectation, or this doctrine, that this instruction (torah) has as its goal a "good (ie, clean/pure) conscience and a sincere faith?" It is the teaching and testimony of the First Covenant, and Yhwh's redemptive promises to Israel, the sons of Jacob.
One place we see this clearly is by the prophet Zechariah. Yeshua taught, "I did not come to abolish the Torah or the Prophets...." In chapters 12-14, Zechariah prophesied on the coming battle of Armageddon, and the salvation of all (yes, twelve tribes) of Israel. In chapter 14, we see Yeshua Messiah's victory:
And then a few verses down, we see the state of affairs in the Messianic kingdom, also know as the kingdom of God.
Most churches teach in their theology that Yeshua, or Jesus came to set us free from the Law. Never mind that John tells us that "everyone who practices sin practices lawlessness. Sin is law-lessness (1 Jn. 3:4)." Protestant believers have been separated from the worldview of the Hebrew authors of the Bible, almost from the second century.
The fact is, the Bible clearly defines the righteousness of Yahweh with his commands (Ps. 119:150), His Torah (instruction - Ps. 119:142). During His life Yeshua lived a life of perfect righteousness, keeping Yahweh's Torah perfectly.
Does it then make sense that once Yahweh delivers sinners from the punishment and verdict of their sin, that he will allow and encourage them to live in law-lessness (unrighteousness)? Yet this is the approach that many who claim to follow Messiah take. But scripture tells us that "he who claims to live in him (Messiah Yeshua) must walk as he walked" (1 Jn. 2:6). The apostle Paul asks, " What shall we say then? Are we to continue in sin so that grace may increase? 2 May it never be! How shall we who died to sin still live in it?" (Rom. 6:1,2).
Clearly, we see that the Messiah Yeshua reigns from His temple in the Millenial Kingdom, over the restored Israel, and the surving remnant of mankind, who will then repopulate the earth during this 1,000 year period. As Yahweh Elohim told us, "He is the same yesterday, today and forever." His standard of righteousness never changed. In fact His Son, Yeshua, His Word/Torah made flesh will reign over His people, till He hands over all things to Yahweh Abba, the Father.