YOU SAID:

I've walked upright before thy face;

INTO JAPANESE

私はあなたの顔の前でまっすぐ歩いた。

BACK INTO ENGLISH

I walked straight in front of your face.

INTO JAPANESE

私はあなたの顔の前をまっすぐ歩いた。

BACK INTO ENGLISH

I walked straight in front of your face.