Hebrews 7:10

_ _ in the loins of his father — that is, forefather Abraham. Christ did not, in this sense, pay tithes in Abraham, for He never was in the loins of an earthly father [Alford]. Though, in respect to His mother, He was “of the fruit of (David’s, and so of) Abraham’s loins,” yet, being supernaturally, without human father, conceived, as He is above the natural law of birth, so is he above the law of tithes. Only those born in the natural way, and so in sin, being under the curse, needed to pay tithe to the priest, that he might make propitiation for their sin. Not so Christ, who derived only His flesh, not also the taint of the flesh, from Abraham. Bengel remarks, The blessings which Abraham had before meeting Melchisedec were the general promises, and the special one of a natural seed, and so of Levi; but the promises under which Christ was comprehended, and the faith for which Abraham was so commended, followed after Abraham’s meeting Melchisedec, and being blessed by him: to which fact. Genesis 15:1, “After these things,” calls our attention. This explains why Christ, the supernatural seed, is not included as paying tithes through Abraham to Melchisedec.