Watson: "walk with them that are pure"

Among Thomas Watson's eight exhortations for attaining heart-purity, was his call to "beware of the society of the wicked" (The Beatitudes)  He follows that call with its flip side, the call to seek wholesome company:

If you would be pure, walk with them that are pure. As the communion of the saints is in our Creed, so it should be in our company. 'He that walketh with the wise shall be wise’ (Proverbs 13: 20), and he that walketh with the pure shall be pure. The saints are like a bed of spices. By intermixing ourselves with them we shall partake of their savouriness. Association begets assimilation. Sometimes God blesses good society to the conversion of others.

JTR