By ‘us’ I’m assuming you mean the Jewish people, and specifically those living in Israel today.
You can’t cherry-pick God’s promises. Even if you accept those verses at face value, the promise is contingent upon the nation remaining faithful to God’s commandments. In the Book of Deuteronomy (chap. 28), God warns Moses:
Indeed not. As God Himself explains (Job 38):
Oh, yes. Here are a few examples, just from the first few books of the Hebrew Bible:
The most obvious instance of a checkpoint was the one set up by the Gileadites to catch retreating Ephraimite soldiers, after the Ephraimites’ defeat in battle. Since Ephraimites were known to have a particular kind of lisp—pronouncing /sh/ as /s/—the Gileadites put a simple test to every man they caught:
Then said they unto him, Say now Shibboleth: and he said Sibboleth: for he could not frame to pronounce it right. Then they took him, and slew him at the passages of Jordan: and there fell at that time of the Ephraimites forty and two thousand. [Judges 12:6]
[A2A] Because He was putting on a show, to demonstrate to the Hebrews* and other nations that He is the greatest—nay, the only—God.
This was, if you like, God’s comeback performance (His first since the Flood), so he was intent on making a big impression. And what greater impression could there be than to beat up and humiliate the most powerful kingdom in the known world at that time?
The expression God is the greatest is similarly alien to the Jewish tradition, for at least two reasons:
Samuel (in Hebrew, Shmuel) does not mean “God has heard”: whoever told you that may be thinking it’s spelled שמוע-אל, i.e. “Shmua-el”, but it’s not. The consonant ayin is missing, and it doesn’t go missing lightly.
In the story of Samuel’s birth (I Sam. 1), Hannah, his mother, explains that she named him so—
כי מיהוה שאלתיו (ki meAdonai she’iltiv)
The word purpose presupposes that one has no control over the future, so can only hope to achieve a particular outcome through intent, action, and hope.
This doesn’t apply to God in the Judaic concept: He knows and controls the future, so it’s only a question of what does He want.
God’s want, or desire, in Hebrew is רצון האל (retzon ha’el).