In Numbers 12 & 13, envy tries to creep into the camp. God stops it in its tracks. Envy is a root sin that leads to evil and can take down a whole team. God speaks of the relationship He has with Moses and his humility. Humility is the only prevention and solution for envy. Miriam's arm becomes leprous which is what sin looks like inside us - death and decay. She is quarantined for 7 days. Moses is a humble leader, his partners in service became envious, 7 days must pass before Miriam is restored and redeemed. Jesus is the ultimate humble leader, the religious leaders became envious leading to His death on the cross. When Jesus returns, there will be 7 years of tribulations and then a glorious restoration and redemption. The Israelites are given a sneak peak to their land that God has promised them. Instead of trusting God and moving forward with Him and His plan for their life, the giants in the land ahead stop them in fear. Instead of looking up - seeing God, and faithfully trusting His Word for their lives - His promises, they only see the giants. They only see the struggle ahead instead of God and His plan.