Jesus said,

"My following listen to my voice, and I know them, and they follow me (Obey me). And I give them eternal life, and they will never perish forever, and no one will seize them out of my hand. 

My Father, who has given them to me, is greater than all, and no one can seize them from the Father’s hand". 

"The Father and I are one”.

John 10:27-30