Amos 9: don´t count on "the Lord is good, therefore He will nor harm us".

In the last chapter of Amos, we read:

7-8 “Do you Israelites think you’re any better than the far-off Cushites?” God’s Decree.
“Am I not involved with all nations? Didn’t I bring Israel up from Egypt, the Philistines from Caphtor, the Arameans from Qir? But you can be sure that I, God, the Master, have my eye on the Kingdom of Sin. I’m going to wipe it off the face of the earth. Still, I won’t totally destroy the family of Jacob.” God’s Decree.

The Lord is calling Israel as the "Kingdom of Sin". He is wiping Israel off the face of the earth but He won't totally destroy the family of Jacob. Nowadays, it is very clear that it happened. Where is the 10 tribes of Israel? However, at Amos times, it was not so clear it would happen, by contrary, it was common to think that the Lord is good and therefore He would not harm his people.

10
All the sinners of My people will die by the sword,
Those who say, ‘The catastrophe will not overtake or confront us.’

Very interestingly, the sinners of Israel think that the catastrophe will not overtake them, but they are very wrong. Wouldn't this message be to me as a Christian who think of myself as a chosen of the Lord? The chosen is led to obey the Lord. However, the Lord will restore Israel:

11
“On that day I will raise up the fallen shelter of David,
And wall up its gaps;
I will also raise up its ruins
And rebuild it as in the days of old;

And that's how Amos finishes.