Jesus advised the people of Laodicea to change their attitude from self-reliance to relying on God.
buy from Me gold: They could buy anything they wanted, but they needed heavenly treasures for spiritual riches through faith in Christ.
refined by fire: Material wealth will not survive God's cleansing by fire (compare 1 Corinthians 3:12–15), but spiritual wealth lasts forever.
White garments are a symbol of spiritual purity. Laodicea was famous for its black wool cloth, a source of their wealth, which likely represents their proud and unredeemed spiritual state.
Laodicea's wealth also came from its famous Phrygian eye ointment, possibly used in a local eye clinic linked to the renowned physician Demosthenes Philalethes. The Laodiceans needed to obtain ointment from Christ through faith. Only his eye salve would help them see their sins and repent.