two kinds of seed

Deut 22:9
Thou shalt not sow thy vineyard with divers seeds: lest the fruit of thy seed which thou hast sown, and the fruit of thy vineyard, be defiled


Lev 19:19
Ye shall keep my statutes. Thou shalt not let thy cattle gender with a diverse kind: thou shalt not sow thy field with mingled seed: neither shall a garment mingled of linen and woollen come upon thee.


Some say "eat the meat and throw out the bones".  However, the thing is truth is more akin to mixing tea and milk.  You can't drink the tea and spit out the milk.

Matthew 13:24-30
Another parable He put forth to them, saying: “The kingdom of heaven is like a man who sowed good seed in his field; but while men slept, his enemy came and sowed tares among the wheat and went his way. But when the grain had sprouted and produced a crop, then the tares also appeared. So the servants of the owner came and said to him, ‘Sir, did you not sow good seed in your field? How then does it have tares?’  He said to them, ‘An enemy has done this.’ The servants said to him, ‘Do you want us then to go and gather them up?’  But he said, ‘No, lest while you gather up the tares you also uproot the wheat with them.  Let both grow together until the harvest, and at the time of harvest I will say to the reapers, “First gather together the tares and bind them in bundles to burn them, but gather the wheat into my barn.”’”


Notice that the enemy sows false seed in among the good seed.  It is not until harvest that the tares and wheat are separated -- by then it is too late for the tares to become wheat...