Why does the Bible compare us to sheep? Because they’re one of the most dependent creatures in the world; they must trust in the shepherd for everything they need. And that’s how God wants you to live: in dependence on Him. When you constantly live in the fear of lack, you’re not trusting God enough. This core fear drives many of our other fears, including the fear of becoming disabled, or the fear of ageing, or the fear of investing, or the fear of retiring poor.
In its extreme form, fear of lack can lead to anxiety. It’s also one of the root causes of greed. You can become so obsessed with insuring yourself against the possibility of not having enough, that you hoard more than you’ll ever need. It can drive you to become a workaholic so that neither you nor your children will ever experience discomfort, inconvenience, and helplessness. And like all fears, it’s based on an erroneous belief about God—in particular, His ability and willingness to take care of you. ‘The Lord is my Shepherd [to feed, guide, and shield me], I shall not lack.’ (Psalm 23:1 AMPC)
Stop living as though you don’t believe what God has promised you! A good strategy is to learn the promises, understand the ones that are conditional, meet the conditions, and rest in His love and faithfulness. This doesn’t mean you sit idly by and wait for God to do what He has given you the ability to do. You must do the natural things, and trust Him for the supernatural ones.