Dog

כֶּלֶב Strong’s #3611 kelev

And the Philistine said unto David, Am I a dog, that thou comest to me with staves? And the Philistine cursed David by his gods.

1 Samuel 17:43

https://biblehub.com/hebrew/3611.htm

The Hebrew word kelev meaning “dog” is only mentioned 31 times in the Hebrew Bible, but never refers to an actual dog. Some references to dogs are as analogies such as in Psalm 59:6: They return at evening, they howl like a dog, And go round about the city. Many references to dogs portray them in a negative light: His watchmen are blind, they are all without knowledge; they are all dumb dogs, they cannot bark; dreaming, lying down, loving to slumber. Yea, they are greedy dogs which can never have enough (Isaiah 56:10,11). However, there is another interpretation of this word, which could mean “like a heart,” by interpreting the letter kaph as the prefix meaning “like,” and the noun lev, meaning “heart.”