Jesus and justification

What does it mean that Jesus was justified in the Spirit? Is that a forensic justification?

I am understanding that your question addresses 1 Timothy 3:16: “Beyond all question, the mystery from which true godliness springs is great:

He appeared in the flesh,
was vindicated by the Spirit,[d]
was seen by angels,
was preached among the nations,
was believed on in the world,
was taken up in glory.
d. Or vindicated in spirit”

Jesus lived the perfect life we cannot (John 8:46; Hebrews 4:15). Jesus then suffered the punishment people deserved for their sins (Isaiah 53:4-12). 1 Corinthians 15:17 explains that if Jesus had not been raised from the dead, there would be no forgiveness of sins. Without his resurrection from the dead, Jesus’ mission would have ended in failure.

The message of the Bible is that Jesus’ resurrection delivered a “not guilty” declaration from God (Romans 4:25). 1 Timothy 3:16 teaches that Jesus’ resurrection vindicated him as the Holy One of God, the sinless Son of God. While the sins of the world were laid on Jesus, his resurrection was a clear signal to all the world that his sacrifice for sin was complete and accepted, and that he remains holy and pure.