It seems Jesus made it very easy to understand in these two similar verses:
“37 Jesus said to him, “‘You shall love the Lord your God with all your heart, with all your soul, and with all your mind.’
38 This is the first and great commandment.
39 A second likewise is this, ‘You shall love your neighbor as yourself.’
40 The whole law and the prophets depend on these two commandments.” “ (Matthew 22:37-40 WEB)
“29 Jesus answered, “The greatest is, ‘Hear, Israel, the Lord our God, the Lord is one:
30 you shall love the Lord your God with all your heart, and with all your soul, and with all your mind, and with all your strength.’ This is the first commandment.
31 The second is like this, ‘You shall love your neighbor as yourself.’ There is no other commandment greater than these.”” (Mark 12:29-31 WEB)
“24 A dispute also arose among them, which of them was considered to be greatest.
25 He said to them, “The kings of the nations lord it over them, and those who have authority over them are called ‘benefactors.’
26 But not so with you. But one who is the greater among you, let him become as the younger, and one who is governing, as one who serves.
27 For who is greater, one who sits at the table, or one who serves? Isn’t it he who sits at the table? But I am among you as one who serves.” (Luke 22:24-27 WEB)
“6 Now in those days, when the number of the disciples was multiplying, a complaint arose from the Hellenists[a] against the Hebrews, because their widows were neglected in the daily service. 2 The twelve summoned the multitude of the disciples and said, “It is not appropriate for us to forsake the word of God and serve tables. 3 Therefore select from among you, brothers, seven men of good report, full of the Holy Spirit and of wisdom, whom we may appoint over this business. 4 But we will continue steadfastly in prayer and in the ministry of the word.”
5 These words pleased the whole multitude. They chose Stephen, a man full of faith and of the Holy Spirit, Philip, Prochorus, Nicanor, Timon, Parmenas, and Nicolaus, a proselyte of Antioch; 6 whom they set before the apostles. When they had prayed, they laid their hands on them. 7 The word of God increased and the number of the disciples greatly multiplied in Jerusalem. A great company of the priests were obedient to the faith.” (Acts 6:1-7 WEB)