Who did Jesus pray to?

Who was the God that Jesus prayed to when He said Father, Abba, not my will but yours be done?
It was YHWH.
Some pronounce it Yehweh.
Some pronounce it Yehovah.
(Because in Jesus day there was no J in the vocabulary.)
Some pronounce it Jehovah.

In the Bible they often just put the Word LORD in place of YHWH.

kandy