Verse 27 The good shepherd being more like the good Lamb

John 10:10-11
The thief comes only to steal and kill and destroy. I came that they may have life and have it abundantly. 11 I am the good shepherd. The good shepherd lays down his life for the sheep.

SIS

John 5:40
yet you refuse to come to me that you may have life.

Acts 20:29
I know that after my departure fierce wolves will come in among you, not sparing the flock;

2 Peter 2:1
Chapter 2
False Prophets and Teachers
1 But false prophets also arose among the people, just as there will be false teachers among you, who will secretly bring in destructive heresies, even denying the Master who bought them, bringing upon themselves swift destruction.

Ezekiel 34:11-12
The Lord God Will Seek Them Out
11 “For thus says the Lord God: Behold, I, I myself will search for my sheep and will seek them out. 12 As a shepherd seeks out his flock when he is among his sheep that have been scattered, so will I seek out my sheep, and I will rescue them from all places where they have been scattered on a day of clouds and thick darkness.

Ezekiel 34:23
And I will set up over them one shepherd, my servant David, and he shall feed them: he shall feed them and be their shepherd.

Isaiah 40:11
He will tend his flock like a shepherd;
he will gather the lambs in his arms;
he will carry them in his bosom,
and gently lead those that are with young.

Hebrews 13:20
Benediction
20 Now may the God of peace who brought again from the dead our Lord Jesus, the great shepherd of the sheep, by the blood of the eternal covenant,

1 Peter 2:25
For you were straying like sheep, but have now returned to the Shepherd and Overseer of your souls.

1 John 3:16
By this we know love, that he laid down his life for us, and we ought to lay down our lives for the brothers.

HIJ

Jesus' sacrifice was significant in three ways. His sacrifice was voluntary, He was not at the mercy of circumstance,
John 10:18
No one takes it from me, but I lay it down of my own accord. I have authority to lay it down, and I have authority to take it up again. This charge I have received from my Father.”
If we view as a circumstantial thing we rob it of its reality that it was an act of supreme love as He gave His own life for ours.
His sacrifice was total. He set aside His glory as that of God's Son and through many stages went on to give Himself,
Philippians 2:7-8
but emptied himself, by taking the form of a servant, being born in the likeness of men. 8 And being found in human form, he humbled himself by becoming obedient to the point of death, even death on a cross.
He even experienced being forsaken by Father God, bearing His wrath and accepting His ultimate punishment for our sin, separation from God the Father.
His sacrifice was beneficial, He died in our stead, He was our substitute and through that we get what is called vicarious atonement. Jesus died for our sins, and God blesses us by assigning to us the results of that sacrifice.
2 Corinthians 5:21
For our sake he made him to be sin who knew no sin, so that in him we might become the righteousness of God.