Protected and Preserved

In the first part of Psalm 68 which we are looking at today, we especially see the Lord's preservation of His people, though we also see His victory over His enemies. His people are in the wilderness and deserts (v4). We have the backdrop of Sinai (v8). Enemies like Og of Bashan are mentioned (v15). We find there are remarkable contrasts with such powerful enemies, but despite this, the Lord's people are protected. What do these things say to us today?
 
1: Who are we?
2: God's protection
3: Eternally secure