A church cannot serve two masters. It cannot peacefully coexist with truths and falsities. To want to live with both and to seek a compromise will cause the church to be laid to waste. The church will perish, and the goods and truths of the Word will be taken away from it.

2942. 'In the ears of the sons of Heth' means obedience. This is clear from the meaning of 'the ear' as obedience, dealt with in 2542.