1 sn The figures used here are hypocatastases (implied comparisons). There may also be an allusion to Deut 6 where the people were told to bind the law on their foreheads and arms. The point here is that the disciple will never be without these instructions. See further, P. W. Skehan, Studies in Israelite Poetry and Wisdom (CBQMS), 1-8.
2 tn Heb “fingers” (so KJV and many other English versions). In light of Deut 6:8, “fingers” appears to be a metonymy for the lower part of the arm.
3 sn This is an allusion to Deut 6:8. Binding the teachings on the fingers and writing them on the tablets here are implied comparisons for preserving the teaching in memory so that it can be recalled and used with ease.