in the strength

Daniel 1:15
And at the end of ten days, their appearance was better and healthier than all the young men who were eating the king's food.

2 Corinthians 12:9
But He said to me, "My grace is sufficient for you, for My power is perfected in weakness." Therefore I will boast all the more gladly in my weaknesses, so that the power of Christ may rest on me.

forty days

Exodus 24:18
Moses entered the cloud as he went up on the mountain, and he remained on the mountain forty days and forty nights.

Exodus 34:28
So Moses was there with the LORD forty days and forty nights without eating bread or drinking water. He wrote on the tablets the words of the covenant--the Ten Commandments.

Deuteronomy 9:9, 18
When I went up on the mountain to receive the tablets of stone, the tablets of the covenant that the LORD made with you, I stayed on the mountain forty days and forty nights. I ate no bread and drank no water. . . .

Matthew 4:2
After fasting forty days and forty nights, He was hungry.

Mark 1:13
and He was there for forty days, being tempted by Satan. He was with the wild animals, and the angels ministered to Him.

Luke 4:2
where for forty days He was tempted by the devil. He ate nothing during those days, and when they had ended, He was hungry.

Horeb

Exodus 3:1
Meanwhile, Moses was shepherding the flock of his father-in-law Jethro, the priest of Midian. He led the flock to the far side of the wilderness and came to Horeb, the mountain of God.

Exodus 19:18
Mount Sinai was completely enveloped in smoke, because the LORD had descended on it in fire. And smoke rose like the smoke of a furnace, and the whole mountain quaked violently.

Malachi 4:4, 5
"Remember the Law of Moses My servant, the statutes and ordinances I commanded him for all Israel at Horeb. . . .