'Harm' in the Bible

And it came to pass on the seventh day, that the child died. And the servants of David feared to tell him that the child was dead; for they said, Behold, while the child was yet alive, we spoke to him, and he would not hearken to our voice; and how shall we say to him, The child is dead? he may do some harm.

The king asked the Ethiopian, "Is the young man safe?" The Ethiopian answered, "May the enemies of your majesty the king including everyone who rebels and tries to harm you become like that young man"."

And David said to Abishai, Now shall Sheba the son of Bichri do us more harm than did Absalom: take thou thy lord's servants, and pursue after him, lest he get him fenced cities, and escape us.