Revelation 15:3

They are singing the song of Moses, the Servant of God, and the song of the Lamb-- 'Great and marvelous are thy deeds, O Lord, our God, the Almighty. Righteous and true are thy ways, Eternal King.

Romans 12:2

Do not conform to the fashion of this world; but be transformed by the complete change that has come over your minds, so that you may discern what God's will is--all that is good, acceptable, and perfect.

Treasury of Scripture Knowledge

Summary

As for God, his way is perfect: the word of the LORD is tried: he is a buckler to all those that trust in him.

Bible References

His way

Romans 12:2
Do not conform to the fashion of this world; but be transformed by the complete change that has come over your minds, so that you may discern what God's will is--all that is good, acceptable, and perfect.
Revelation 15:3
They are singing the song of Moses, the Servant of God, and the song of the Lamb-- 'Great and marvelous are thy deeds, O Lord, our God, the Almighty. Righteous and true are thy ways, Eternal King.