Emotions are often viewed as undesirable and to be avoided. For some people, emotions are intrinsically irrational, and thus, the good man or woman would not be described as “emotional.” In some ancient Greek philosophy, the idea of the “rational” man, who is (mostly) either impervious to passions or who rules over his emotions by way of unemotional reason, is prized as the ideal.
Unbridled emotions can be problematic, yes. However, God created people with the capacity for emotions, and God Himself is displayed throughout Scripture as experiencing profound emotions. If God can experience deep emotions, as the Bible consistently portrays, then emotions cannot be intrinsically bad or irrational—for the God of the Bible is perfectly good and possesses perfect wisdom.