'Suckling' in the Bible

And played hath a suckling by the hole of an asp, And on the den of a cockatrice Hath the weaned one put his hand.

As a shepherd His flock He feedeth, With His arm He gathereth lambs, And in His bosom He carrieth them: Suckling ones He leadeth.

Forget doth a woman her suckling, The loved one -- the son of her womb? Yea, these forget -- but I -- I forget not thee.

There is not thence any more a suckling of days, And an aged man who doth not complete his days, For the youth a hundred years old dieth, And the sinner, a hundred years old, is lightly esteemed.