This is clearly shown a few verses farther down, where we see that there were already in Samuel's time people known as nebhiim, but that they were not seers.
It is far from easy to determine how far the development of the class of prophets meant the absorption into it of the old seers.
The seers of Israel were content to dismiss their dead to a land of silence and darkness, the vast hollow gloom of the subterranean Sheol.'
Various portions, each weighing 10 seers (of 23 5 lb), are selected by test assay so as to ensure the mass being of standard consistence (70% of the pure dry drug and 30% of water), and are thrown into shallow drawers and kneaded together.
Just as Jesus did, we will become great seers, healers, and prophets.