Why did Jesus arrange his 11 disciples in two places on the way to his place of prayer in Gethsemane?

We read in Matt 26:36-39 (NRSVCE) : > Then Jesus went with them to a place called Gethsemane; and he said to his disciples, “Sit here while I go over there and pray.” He took with him Peter and the two sons of Zebedee, and began to be grieved and agitated. Then he said to them, “I am deeply grieved, even to death; remain here, and stay awake with me.” And going a little farther, he threw himself on the ground and prayed... One wonders why Jesus asked his 11 disciples to remain in two different places on his way to the place of prayer in Gethsemane And Peter was carrying a sword ! ( Jn 18:10). Did Jesus anticipate an early arrival of his betrayer and the soldiers, who needed to be warded off till he completed his prayer? Was the arrangement of disciples in two steps i.e. 8 plus 3, intended to reinforce physical security in all his human nature? **My question, therefore is**: According to Catholic teachings, why did Jesus arrange his 11 disciples in two places on the way to his place of prayer in Gethsemane?