Don’t think too hard; these are obviously rhetorical questions. David starts out this well-known Psalm proclaiming who God is; his light, salvation, and strength. The apparent answers to His questions are no one at all. When the Almighty God is your source of power there is no reason to fear or be afraid. In fact, when God is your source of power your attitude in life should be just the contrary.
David was confident in the Lord’s protection and provision and rightfully so. If the Lord is center of your life; you have no choice but to be walking in complete confidence. He is the light that guides you in darkness. He provides salvation that has made you brand new. He alone is the strength of your life. Remember that there is nothing you can do on your own, but God’s sovereignty is all that you need. Move forward in confidence remembering there is nothing to fear!