Synonyms for the phrase "lack of Christian charity" include "absence of compassion," "unwillingness to show generosity," "insensitivity," "cold-heartedness," and "selfishness." These phrases reflect the idea that Christian charity involves not only giving to others but also having empathy and kindness towards them. A lack of Christian charity can manifest in various ways, such as refusing to help those in need, being judgmental towards others, or engaging in selfish behavior. To exhibit Christian charity, one must be willing to put aside their own desires and show kindness and love towards others, regardless of their circumstances or beliefs.