Why couldn't Telemachus get his spear back?

Telemachus couldn't get his spear back because it was taken by the suitors, who were occupying his father's palace. They were disrespectful and refused to return it, viewing themselves as more powerful and entitled to the resources of the house. This situation represents the larger theme of Telemachus's struggle against the chaos and disrespect in his home, as he seeks to reclaim his father's legacy and authority.