Hebrews 7:10

Because he was still in his father's body when Melchizedek came to him.

Genesis 35:11

And God said to him, I am God, the Ruler of all: be fertile, and have increase; a nation, truly a group of nations, will come from you, and kings will be your offspring;

Genesis 46:26

All the persons who came with Jacob into Egypt, the offspring of his body, were sixty-six, without taking into account the wives of Jacob's sons.

1 Kings 8:19

But you yourself will not be the builder of my house; but your son, the offspring of your body, he it is who will put up a house for my name.

Hebrews 7:5

And it is true that by the law, those of the sons of Levi who have the position of priests may take a tenth part of the people's goods; that is to say, they take it from their brothers though these are the sons of Abraham.

Treasury of Scripture Knowledge

Summary

For he was yet in the loins of his father, when Melchisedec met him.

Bible References

General references

Hebrews 7:5
And it is true that by the law, those of the sons of Levi who have the position of priests may take a tenth part of the people's goods; that is to say, they take it from their brothers though these are the sons of Abraham.
Genesis 35:11
And God said to him, I am God, the Ruler of all: be fertile, and have increase; a nation, truly a group of nations, will come from you, and kings will be your offspring;
Genesis 46:26
All the persons who came with Jacob into Egypt, the offspring of his body, were sixty-six, without taking into account the wives of Jacob's sons.
1 Kings 8:19
But you yourself will not be the builder of my house; but your son, the offspring of your body, he it is who will put up a house for my name.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain