This is an impossibility in our human condition..
This is an Old Testament command to Israel ( remember the gospels are actually old Testament in that they speak of the time before the death, resurrection and ascension) The new Testament starts in Pentecost ..This prayer is the Jewish Shema.
Keep in mind that NO ONE can keep the commandments of God.. That is why Jesus kept them perfectly for us.. and He loves the Father with his whole heart mind and heart and His neighbor as Himself
From *The Pursuit of God*.
“The man of God set his heart to exalt God above all; God accepted his intention as fact and acted accordingly. Not perfection, but holy intention made the difference.”