Why is looking to myself for evidence of salvation dangerous?

When we look to our own actions as evidence of our salvation, we risk falling into self-righteousness and doubt, as described in the sermon based on Isaiah 58. This leads to a double-minded state where our assurance fluctuates based on our performance—essentially taking our eyes off Christ, who is our true hope and assurance. The danger lies in losing sight of the gospel, which is meant to provide us with peace and confidence through Christ's completed work, rather than our inconsistent efforts.