In Exodus 5, Pharaoh asks, "Who is Yahweh that I should obey him".  In chapters 5-10, God answers that he is the Lord God Almighty but repeatedly showing his superiority over the Egyptian gods.  The process also brings hardship for the Israelites.  God's path for our lives does involve trials (I Peter 1:3-7).  However, in Exodus 6 God comforts Israel with the reminder that he is the almighy God who keeps his covenant.  He also promises liberation, redemption, adoption and an inheritance, all of which are foreshadowing of his promises to all believers.