Hosea 13:16

‘Samaria will bear her guilt,

For she has rebelled against her God,

They will fall by the sword,

Their infants will be dashed in pieces,

And their women with child will be ripped up.

For Samaria, Ephraim's capital and leadership source, must now bear her guilt, because she has rebelled against her God. She is finally responsible for all the idolatry and all the covenant-breaking, and thus she must face the curses threatened by YHWH in Leviticus 26; Deuteronomy 28. Her people will fall by the sword, their infant children will be dashed in pieces, and their pregnant women will be ripped open. God is not, of course, responsible for the detail. That results from man's inhumanity to man. But it is He Who has willed the event and allowed it to happen.