Why did Henry IV favor lay investiture?

Henry IV favored lay investiture because it allowed secular leaders to appoint bishops and abbots, thereby strengthening his control over the Church and ensuring that these religious figures were loyal to the crown. This practice helped him consolidate power and resources within his realm, as Church officials often held significant political and economic influence. Additionally, by asserting control over the appointment of clergy, Henry sought to counteract the growing power of the papacy, which he viewed as a threat to his authority.