These then exit, and others are knocking at the entrance – and they are ‘masters of the arms’ – and they are saying: (Ps. 51:17) “ADNY! Open my lips...”
Immediately, the guardians of the gates enter and say: ‘Master of the Universe! Behold, the ‘masters of the arms’ are knocking at the entrance.’
A voice emerges and says: ‘These are the ‘masters of the arms’, – with the binding of the phylacteries (tephilin), – and with ‘the wrapping of precept’, of which it is stated: (Gen. 9:23)... and they placed it upon the shoulder of both-of-them... Like Shem and Japheth, of whom it is stated: (ibid) And Shem and Japeth took the cloak... etc.... and the’ervah (obscenity) of their father they did not see...