Romans 4:11

Verse 11. And he received the sign, etc. A sign is that by which anything is shown or represented. And circumcision thus showed that there was a covenant between Abraham and God, Ge 17:1-10. It became the public mark or token of the relation which he sus- tained to God. A seal. See Barnes "Joh 3:33". A seal is that mark of wax or other substance, which is attached to an instrument of writing, as a deed, etc., to confirm, ratify it, or to make it binding. Sometimes instruments were sealed, or made authentic by stamping on them some word, letter, or device, which had been engraved on silver, or on precious stones. The seal or stamp was often worn as an ornament on the finger.