The apostle Peter displayed the spirit of self - sacrifice while he was being trained by Jesus. Yet, he had to fight selfish tendencies.
(‏ مت ١٦ :‏ ​ ١٨ ،‏ ١٩‏ )‏ لٰكِنَّ يَسُوعَ حَذَّرَ يَعْقُوبَ ،‏ يُوحَنَّا ،‏ بُطْرُسَ ،‏ وَسَائِرَ ٱلرُّسُلِ مِنَ ٱلسَّعْيِ إِلَى ‹ ٱلسِّيَادَةِ عَلَى › إِخْوَتِهِمْ .‏ —‏ مر ١٠ :‏ ​ ٣٥ -‏ ٤٥‏ .‏