'Unto' in the Bible

The elder unto Gaius the beloved, whom I love in truth.

For I rejoiced greatly, when brethren came and bare witness unto thy truth, even as thou walkest in truth.

I wrote somewhat unto the church: but Diotrephes, who loveth to have the preeminence among them, receiveth us not.

I had many things to write unto thee, but I am unwilling to write them to thee with ink and pen:

but I hope shortly to see thee, and we shall speak face to face. Peace be unto thee. The friends salute thee. Salute the friends by name.