For we walk by faith [we regulate our lives and conduct ourselves by our conviction or belief respecting man’s relationship to God and divine things, with trust and holy fervor; thus we walk] not by sight or appearance.
2 Corinthians 5:7 (AMP)
Walking by faith and not by sight means we are not walking according to appearances. No matter what it looks like or feels like, we maintain our trust and confidence in God and in His unmerited favor towards us in Christ Jesus. We hold fast to our conviction and confession that right now we already have what we are believing for!