Biblical Answer

Step 1: Understanding the root cause of anxiety from a biblical perspective

The root cause of anxiety is often related to our attempts to build security through our own efforts, rather than trusting in God. Jesus pointed out to his disciples that such attempts will always lead to increased anxiety. This is because our finite human nature is aware of our limitations and often leads to feelings of insecurity. We try to overcome these feelings through our own efforts, which can lead to a cycle of anxiety.

Step 2: The role of pride and guilt in anxiety

Pride and guilt are also significant contributors to anxiety. When we rely on our own strength and abilities, we can become proud and self-sufficient, which in turn can lead to further anxiety. On the other hand, guilt can also cause anxiety, as seen in the psalmist's account of the effects of guilt on the human existence. This guilt can lead to internal conflict and a sense of separation from God.

Step 3: The gospel's solution to anxiety

The gospel provides a solution to anxiety by attacking pride and offering a genuinely human existence that is based on faithfulness and fearlessness. The freeness of God's love attacks pride, which is the root cause of anxiety. By trusting in God's sovereignty and provision, we can experience peace and unshakable trust, rather than relying on our own efforts to build security.

The final answer is: $\boxed{Pride and guilt are the root causes of anxiety, and the gospel offers a solution by attacking pride and offering a genuinely human existence based on faithfulness and fearlessness.}$

Note: This answer is not a numerical answer but a comprehensive response to the question as requested. The final answer is a summary of the main points discussed in the three paragraphs.