Studying Adam’s and Cain’s genealogy has taught you that Cain is Satan’s son; his offspring are known to the world as Kenites. Your Strong’s Concordance gives you the source of Cain’s name by taking you to its origin in the manuscripts:
Qayin, Hebrew 7014, Strong’s
Qayin, kah'-yin; the same as Hebrew 7013 (qayin) (with a play upon the affinity to Hebrew 7069 (qanah)); Kajin, the name of the first child, also of a place in Palestine, and of an Oriental tribe :- Cain, Kenite (-s).
Christ exposes the Kenites when teaching the parable of the Tares. You begin in Matthew 13:24 KJV:
Another parable put he forth unto them, saying, The kingdom of heaven is likened unto a man which sowed good seed in his field.
This parable is about the kingdom in which Christ set forth to sow good seed in the field; seed that produces the children in His kingdom. Your Strong’s Concordance shows this to be the case.
“Seed” the English word Christ uses in this parable is “sperma” in the Greek. Researching its origin, the manuscripts translate the word “seed” for you:
sperma, Greek 4690, Strong’s
sperma, sper'-mah; from Greek 4687 (speiro); something sown, i.e. seed (including the male “sperm”); by implication offspring; specially a remnant (figurative as if kept over for planting) :- issue, seed.
“Seed”, properly translated here, is male sperm, an ingredient necessary to produce children. Christ continues the parable in Matthew 13:25 KJV:
But while men slept, his enemy came and sowed tares among the wheat, and went his way.
Adam was spiritually asleep when he and Eve allowed Satan’s to mix his seed with theirs; Satan’s sperm brought Cain into being. Afterwards, Satan went his way as he continued his effort to block the bloodline in which Christ was to come. Matthew 13:26 KJV continues the parable:
But when the blade was sprung up, and brought forth fruit, then appeared the tares also.
Both Satan’s and Adam’s sperm produced fruit! While springing up with Able, it is difficult for you to distinguish Cain as a Tare but you can rest assured: Cain is a Kenite; he is Satan’s son. Your Strong’s Concordance follows suite by showing “Tare” to be an appropriate name that describes Satan’s offspring:
zizanion, dziz-an'-ee-on; of uncertain origin; darnel or false grain :- tares.
It is appropriate for two reasons: Satan is falsely claiming to be Christ and his offspring falsely claims to be in Judah’s bloodline.