A covenant is an agreement, compact or contract between two or more parties. God defines all of the conditions. The people could only accept or decline God's offer. Most Hebrews followed it no matter their life is threaten. They believe in the ten commandments and the law of Moises.
The Jews (formerly called "Hebrews") relate to God through prayer, study, and acts of lovingkindness.
Hebrews are called Jews today, and they do not spread the idea of one God. (The idea of spreading beliefs is a Christian practice.)
the covenant
No one, since the Hebrews (Israelites) did not have gods. They worshiped One God and still do.
they believed that god would protect them.
Hebrews 5:4 says a man must be called of God.
The ancient Hebrews' laws of God are collectively called the Torah. The Torah contains the Ten Commandments (Exodus ch.20) as well as some six hundred additional laws and commands, in addition to its historical and other narratives. See also:More detailAbout the TorahThe Ten Commandments
The Hebrews (Jews) had and have only one God, that is why they are called monotheists (mon=one, theos=god). The Greek, on the other hand, had many gods, and that is why they are called polytheists (poly=many). There is no similarity or correspondence between the Greek gods and the Hebrew God.
According to The Bible, it was the land that God had promised to Abraham.
Jewish traditional holds that the concept of God includes the idea that God protects everyone, not just the Hebrews.
They believed in what is now called Judaism. They worshiped the One God and repudiated idolatry.