Esias 21:12

12 I watch in the morning and the night: if thou wouldest enquire, enquire, and dwell by me.

Esias 21:12 In-Context

10 Hear, ye that are left, and ye that are in pain, hear what things I have heard of the Lord of hosts the God of Israel has declared to us. THE VISION OF IDUMEA.
11 Call to me out of Seir; guard ye the bulwarks.
12 I watch in the morning and the night: if thou wouldest enquire, enquire, and dwell by me.
13 Thou mayest lodge in the forest in the evening, or in the way of Daedan.
14 Ye that dwell in the country of Thaeman, bring water to meet him that is thirsty;

The Brenton translation of the Septuagint is in the public domain.