From among these ayat is His statement:
“Allah puts forth an example: a man (slave) belonging to (many) disputing partners and another man (slave) belonging exclusively to one master – are they equal in comparison? All Praise be to Allah! But most of them do not know.” (Surah Al-Zumar:29)
Wherein Allah gives the examples of an idolater and a believer – The idolater is likened to a slave owned by a group whom he must serve, yet he is unable to please them all, whereas a believer who worships and believes in One God, is likened to a slave owned by one person, and he knows of the means by which he can please him. He knows what his master wants of him and so he is safe from the quarrelling of partners, has he been owned by a group. Therefore, he is focused on serving his master and his master is merciful and compassionate when he deals with him. So, Allah asks us how these slaves can be equal in any manner. Indeed, when a person is devoted to serving one owner, he will receive much kindness, generosity and aid, compared to the one who is owned by disputing partners. All praise is due to Allah alone for most of them fail to comprehend.
Paragons of the Qur’an by Ibn Qayyim al Jawziyyah Pages 103-104