Psalms 18:30 - Exposition

As for God, his way is perfect (comp. Deuteronomy 32:4 , "His work is perfect, for all his ways are judgment"). What God does, he does effectually; he does not have recourse to half-measures. The word of the Lord is tried ; i.e. the promises of God are sure, they have been tested, and tried as by fire, and will never fail. He is a Buckler to all those that trust in him (comp. Psalms 18:2 ).