No, we do not. Israel had to obey and continue to obey (and have faith) to be saved.
No, they did not have to have faith because the law was NOT based on faith.
Galatians 3:12 The law is not based on faith; on the contrary, it says, "The person who does these things will live by them."
We in the Body of Christ, however, only have to have faith, through which we receive grace and eternal life.
I can hardly believe you said that.
Colossians 3:23 Whatever you do,
work at it with all your heart, as working for the Lord, not for human masters, 24 since you know that you will receive an inheritance from the Lord as a reward.
It is the Lord Christ you are serving. 25
Anyone who does wrong will be repaid for their wrongs, and there is no favoritism.
Romans 2:5 But because of your stubbornness and your unrepentant heart, you are storing up wrath against yourself for the day of God’s wrath, when his righteous judgment will be revealed. 6 G
od “will repay each person according to what they have done.” 7 To those who by persistence in doing good seek glory, honor and immortality, he will give eternal life. 8 But for those who are self-seeking and who reject the truth and follow evil, there will be wrath and anger. 9 There will be trouble and distress for every human being who does evil: first for the Jew, then for the Gentile; 10 but glory, honor and peace for everyone who does good: first for the Jew, then for the Gentile. 11 For God does not show favoritism.