'Harm' in the Bible

Then it happened on the seventh day that the child died. And the servants of David were afraid to tell him that the child was dead, for they said, “Behold, while the child was still alive, we spoke to him and he did not listen to our voice. How then can we tell him that the child is dead, since he might do himself harm!”

And David said to Abishai, “Now Sheba the son of Bichri will do us more harm than Absalom; take your lord’s servants and pursue him, so that he does not find for himself fortified cities and escape from our sight.”