There is nothing in the Bible that prohibits cremation.
The sentence on Adam was that he should return to dust (the elements from which he was created).
Genesis 3:19 In the sweat of thy face shalt thou eat bread, till thou return unto the ground; for out of it wast thou taken: for dust thou art, and unto dust shalt thou return.
This applies to all Adam’s offspring.
Cremation is just a faster process of reducing the body to dust.
God has the power to resurrect the body whether it was burned, buried, eaten by animals or lost at sea.
Having said that, burial is the normal way of disposing of the dead.
Genesis 15:15 And thou (Abraham) shalt go to thy fathers in peace; thou shalt be buried in a good old age.
Genesis 49:31 There they buried Abraham and Sarah his wife; there they buried Isaac and Rebekah his wife; and there I buried Leah.
Deuteronomy 34:6 And he (God) buried him (Moses) in a valley in the land of Moab, over against Bethpeor: but no man knoweth of his sepulchre unto this day.
There is no commandment in scripture against cremation.
I hope you find this helpful.