What is the 'armor of light' mentioned in Romans?

In Romans 13:12, Paul exhorts believers to put on the armor of light, which symbolizes living righteously and reflecting the character of Christ. This imagery suggests that just as soldiers wear armor for protection, Christians should adorn themselves with virtues such as purity, humility, and love. These qualities shield against the 'works of darkness' that can lead to sin and moral failure. Thus, adopting the armor of light serves as both a protection for the believer and a testament to their faith in a world often characterized by negativity and immorality.