What does Psalm 121 teach about God's protection?

Psalm 121 reassures believers of God's constant protection and vigilance. It states, 'He that keepeth Israel shall neither slumber nor sleep,' highlighting God's unyielding watchfulness over His people. This means that at no time are they outside His care. The assurance that God is always awake and attentive to their needs provides comfort, especially when faced with life's storms. Trusting in His protective nature encourages believers to rely on Him rather than on their own understanding or resources.