How can we reconcile the obligation to hate and show enmity towards the disbeliever for the sake of Allah, even if they are relatives, with the Almighty's saying: "But if they endeavor to make you associate with Me that of which you have no knowledge, do not obey them, but accompany them in [this] world with appropriate kindness"?

Obedience to parents is obligatory even if they are disbelievers, unless they command an act of disobedience or if obeying them would harm the child. This is based on the Almighty's saying: "And We have enjoined upon man [to be good] to his parents. But if they endeavor to make you associate with Me that of which you have no knowledge, then do not obey them." This does not contradict hating disbelief, nor does it mean not being kind to them. Allah did not forbid kindness to disbelievers who do not fight Muslims, as the Almighty says: "Allah does not forbid you from those who do not fight you because of religion and do not expel you from your homes - from being righteous toward them and acting justly toward them. Indeed, Allah loves those who act justly."