In John 13:13 Jesus accepts His rightful identity as both Teacher and Lord. These are not two separate roles that Jesus takes on. Rather, the two roles are bound up together. Jesus is a commanding teacher, a teaching Lord. His instruction is His command, and His law is His teaching.
Therefore, we fulfill our role as disciples when we are servants (slaves, bond-servants, bond-slaves). Our service and discipleship are bound up together just as His lordship and teaching are bound up together.
As with Moses, so with Jesus. That is, Moses gave the Torah, which can be translated “teaching” or “law.” Likewise, Jesus gives us His teaching, which is to us “law.”
Jesus’ teaching = Jesus’ commandments = Jesus’ law = Jesus’ Torah
The text of Torah is unchanged. It’s just that Moses gave the Torah according to the flesh and Jesus taught the Torah according to the spirit. (See Flesh Versus Spirit.)
We actualize the lordship of Christ in the same way that we actualize His teaching ministry. Therefore, the vocabulary of lordship and the vocabulary of discipleship have everything to do with each other.
I’ve marked the references to lordship or authority in bold, and references to teaching in underline.
Matthew 7:28, 29 – “…He was teaching them as one having authority…”
Matthew 10:24, 25 – “A disciple is not above his teacher, nor a slave above his master…”
Mark 1:22 (same as Matthew 7:28-29 above)
Luke 4:32 (same as Matthew 7:28-29 above)
John 13:13, 14 – “You call Me Teacher and Lord; and you are right, for so I am…”
1 Timothy 2:12 – “…to teach or exercise authority…”
1 Kings 10:8 – “how blessed are these your servants who stand before you continually and hear your wisdom.” – This is a king whose wisdom is teaching those attending him.
Isaiah 30:20, 30 – “Teacher…authority”