7th DAY SABBATH = MESSIANIC ERA = DAY OF THE LORD = TRIBULATION

Isaiah 13:6 Howl ye; for the day of the LORD is at hand; it shall come as a destruction from the Almighty.

Isaiah 13:8 And they shall be afraid: pangs and sorrows shall take hold of them; they shall be in pain as a woman that travails:

Zephaniah 1:14 The great day of the LORD is near, it is near and hastens greatly even the voice of the day of the LORD: the mighty man shall cry there bitterly.

Zephaniah 1:15 That day is a day of wrath, a day of trouble and distress, a day of wasteness and desolation, a day of darkness and gloominess, a day of clouds and thick darkness