Job 39:16
She is hardened against her young ones, as though they were not hers: her labour is in vain without fear;
Cross-reference
1 Kings 3:26 shows a real mother's yearning for her son, contrasting the ostrich's harsh indifference with genuine maternal love.
1 Kings 3:27 confirms the loving mother, further contrasting the ostrich's lack of natural affection with a mother's protective instinct.
2 Kings 6:28 recounts a mother agreeing to eat her child during famine, a horrific parallel to the ostrich's harsh treatment of her young.
Lamentations 4:3 explicitly compares cruel people to ostriches, directly echoing Job's description of the ostrich's harshness to her young.
Deuteronomy 28:57 portrays a mother eating her children in desperation, an extreme example of the same cruelty seen in the ostrich.
Romans 1:31 lists 'heartless' (without natural affection) as a sin, capturing the same lack of maternal instinct shown by the ostrich.