Reference: Mourning Customs
Hastings
The Oriental expression of grief has a twofold relationship. Towards God it is marked by silent and reverent submission symbolized by placing the hand on the mouth. 'The Lord gave and the Lord hath taken away' (Job 1:21); 'I was dumb
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"Also whenever you fast, you must not look gloomy like the hypocrites, for they put on a gloomy countenance, to let people see them fasting. I solemnly say to you, they already have their reward. But whenever you, follower of mine, fast, perfume your head and wash your face, read more. so that your fasting may be seen, not by men but by your Father who is unseen, and your Father who sees what is secret will reward you.
They came to the home of the leader of the synagogue, and there He saw confusion, and people weeping and wailing without restraint.
Practice rejoicing with people who rejoice, and weeping with people who weep.
So continue encouraging one another with this truth.
because the Lamb who is in the center of the throne will be their Shepherd, and God will wipe every tear from their eyes."