Know your own disease
But if enthusiasm is so great an evil, beware you are not entangled with it yourself. Watch and pray that you do not fall into temptation (Matthew 26:41). It easily besets those who fear or love God. O beware you do not think of yourself more highly than you ought to think (Romans 12:3). Do not imagine you have attained that grace of God to which you have not attained. You may have much joy; you may have a measure of love, and yet not have living faith. Cry to God that he would not allow you, blind as you are, to go out of the way: that you may never fancy yourself a believer in Christ until Christ is revealed in you (Galatians 1:16), and until his Spirit witnesses with your spirit that you are a child of God (Romans 8:16).
1771 text
35. But if Enthusiasm be so great an evil, beware you are not intangled therewith yourself. Watch and pray that you fall not into the temptation. It easily besets those who fear or love God. O beware you do not think of yourself more highly than you ought to think. Do not imagine you have attained that grace of God, to which you have not attained. You may have much joy: you may have a measure of love, and yet not have living faith. Cry unto God that he would not suffer you, blind as you are, to go out of the way: that you may never fancy yourself a believer in Christ, till Christ is revealed in you, and till his Spirit witnesses with your Spirit, that you are a child of God.