Concerning the very rite of circumcision, which was the token of Abraham’s covenant of blood-friendship with the Lord, the Israelites were taught that its spiritual value was not in the formal surrender of a bit of flesh, and a few drops of blood, in ceremonial devotedness to God, but in its symbolism of the implicit surrender of the whole life and being, in hearty covenant with God. “Behold, unto the Lord thy God belongeth the heaven, and the heaven of heavens, the earth with all that therein is. Only the Lord had a delight in thy fathers to love them, and he chose their seed after them, even you above all peoples as at this day. Circumcise therefore the foreskin of your heart, and be no more stiff-necked.”[541] “And it shall come to pass, when all these things are come upon thee, the blessings and the curse which I have set before thee, and thou shalt call them to mind among all the nations, whither the Lord thy God hath driven thee, and shalt return unto the Lord thy God, and shalt obey his voice according to all that I command thee this day, thou and thy children, with all thine heart, and with all thy soul; that then the Lord thy God will turn thy captivity, and have compassion upon thee, and will return and gather thee from all the peoples, whither the Lord thy God hath scattered thee.... And the Lord thy God will circumcise thine heart, and the heart of thy seed, to love the Lord thy God with all thine heart, and with all thy soul, that thou mayest live.”[542] And when this has come to pass, the true seed of Abraham,[543] circumcised in heart,[544] shall be in the covenant of blood-friendship with God. So, also, with the phylacteries, as the record of the blood-covenant of the passover, they had a value only as they represented a heart-remembrance of that covenant, by their wearers. Says Solomon, in the guise of Wisdom. “My son, forget not my law; But let thine heart keep my commandments.... Let not mercy and truth forsake thee: Bind them about thy neck; Write them upon the table of thy heart; So shalt thou find favor and good understanding In the sight of God and man.”[545] “Keep my commandments and live; And my law as the apple of thine eye. Bind them upon thy fingers; Write them upon the table of thine heart.”[546] And the prophet Jeremiah foretells the recognition of this truth in the coming day of better things: “Behold the days come, saith the Lord, That I will make a new covenant With the house of Israel and with the house of Judah: Not according to the covenant that I made with their fathers In the day that I took them by the hand, To bring them out of the land of Egypt; [That covenant was the blood-covenant of the passover; of which the phylacteries were a token.]