Verses with the word sucking in the Old Testament (5 verses):

Numbers 11:12
Have I conceived all this people? have I begotten them, that thou shouldest say unto me, Carry them in thy bosom, as a nursing father beareth the sucking child, unto the land which thou swarest unto their fathers?

1 Samuel 7:9
And Samuel took a sucking lamb, and offered it for a burnt offering wholly unto the LORD: and Samuel cried unto the LORD for Israel; and the LORD heard him.

Isaiah 11:8
And the sucking child shall play on the hole of the asp, and the weaned child shall put his hand on the cockatrice' den.

Isaiah 49:15
Can a woman forget her sucking child, that she should not have compassion on the son of her womb? yea, they may forget, yet will I not forget thee.

Lamentations 4:4
The tongue of the sucking child cleaveth to the roof of his mouth for thirst: the young children ask bread, and no man breaketh it unto them.