Why is it important to understand 'do' versus 'done' in salvation?

'Do' suggests an active attempt to perform works to achieve salvation, which the Scriptures declare to be futile. Romans 3:20 clearly states that by the deeds of the law, no flesh will be justified. Conversely, 'done' refers to the completed work of Christ on our behalf, signaling that salvation is a gift received through faith (Ephesians 2:8-9). Recognizing this distinction assures believers that they are secure in Christ's finished work rather than their performance, providing peace in their standing before God.