Anf-03 vi.iv.xviii Pg 5
Matt. vi. 16–18.
for now, by abstinence from the kiss, we are known to be fasting. But even if there be some reason for this practice, still, lest you offend against this precept, you may perhaps defer your “peace” at home, where it is not possible for your fast to be entirely kept secret. But wherever else you can conceal your observance, you ought to remember the precept: thus you may satisfy the requirements of Discipline abroad and of custom at home. So, too, on the day of the passover,8866 8866 i.e. “Good Friday,” as it is now generally called.
when the religious observance of a fast is general, and as it were public, we justly forego the kiss, caring nothing to conceal anything which we do in common with all.
Treasury of Scriptural Knowledge, Chapter 6
VERSE (18) - 2Co 5:9; 10:18 Col 3:22-24 1Pe 2:13