Are you talking about this one?
Thats his 6 Tail form. He broke out of the moon in his 8 Tail form but did not use his power beyond that (He was able to reseal and thus not use the kyuubi's power after that). Now he has the 9 Tail form, or something beyond that since he is fully in sync with the kyuubi instead of the kyuubi simply taking him over.
Romans 8:31 What, then, shall we say in response to this? If God is for us, who can be against us?
1 Corinthians 13:1-3 If I speak in the tongues of men or of angels, but do not have love, I am only a resounding gong or a clanging cymbal. If I have the gift of prophecy and can fathom all mysteries and all knowledge, and if I have a faith that can move mountains, but do not have love, I am nothing. If I give all I possess to the poor and give over my body to hardship that I may boast, but do not have love, I gain nothing.