Sirach 18:23

23 Prepare yourself before making a solemn promise, and don't be like someone who tests the Lord.

Sirach 18:23 In-Context

21 Humble yourself before you get sick,
22 and when you commit sins show a changed heart and mind. Don't be prevented from repaying a solemn promise in a timely way, and don't wait until death to be vindicated.
23 Prepare yourself before making a solemn promise, and don't be like someone who tests the Lord.
24 Be mindful of his wrath in times of death and in times of vengeance when he turns his face away.
25 Remember a time of hunger in a time of plenty, a time of poverty and want in times of wealth.
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