HE CAME UNTO HIS OWN
John 1:10-11  He was in the world, and the world was made by him, and the world [masculine gender] knew him not.  11  He came unto his own [neuter gender], and his own [masculine gender] received him not.
UNTO THE STRAYING SHEEP
Matthew 10:6  But go rather to the lost (stray) sheep [neuter gender] of the house of Israel [masculine gender].
His Own, Masculine Gender
His Own, Neuter Gender
His own, masculine, is the house of Israel
His own, neuter, is the sheep fold
Christ’s ministry to Israel is not the same
as His ministry to His sheep.
Israel can not understand the word of God
His sheep have ears to hear and
are able to understand the word of God.
THESE SHEEP BELONG
TO THE SHEPHERD
Matthew 18:11-12  For the Son of man is come
to save [restore, (his sheep)] that which was lost
(out of shepherd control).  How think ye? if a man
have (in his sheep fold) an hundred sheep,
and one of them (his own sheep) be
gone astray [err] (from his fold), …
You can see in John 1:10-11 that the phrase “His own” is used twice. The first time it is neuter and the second one is masculine.

In verse 10 the word “world” is masculine. Looking at Matthew 10:6 where Jesus defines for his disciples their target ministry is to be to  the sheep, neuter gender. These sheep are part of the house of Israel, masculine gender. These sheep are of the house of Israel and they are straying from the fold.