Joshua 1

Before Moses's departure, he said to Joshua -

"Be strong and of a good courage, fear not, nor be afraid of them: for the LORD thy God, he it is that doth go with thee; he will not fail thee, nor forsake thee." (Old Testament | Deuteronomy 31:6)

And in his last discourse -

"...he gave Joshua the son of Nun a charge, and said, Be strong and of a good courage: for thou shalt bring the children of Israel into the land which I sware unto them: and I will be with thee." (Old Testament | Deuteronomy 31:23)

And then -

"...after the death of Moses the servant of the LORD it came to pass, that the LORD spake unto Joshua the son of Nun, Moses' minister, saying,
2 Moses my servant is dead..." (Old Testament | Joshua 1:1 - 2)

And now with Moses' death the Lord called Joshua to lead the people saying -

"There shall not any man be able to stand before thee all the days of thy life: as I was with Moses, so I will be with thee: I will not fail thee, nor forsake thee." (Old Testament | Joshua 1:5)

Even though previous instruction had come throug his servant, the prophet Moses, the Lord said directly -

"Have not I commanded thee? Be strong and of a good courage; be not afraid, neither be thou dismayed: for the LORD thy God is with thee whithersoever thou goest." (Old Testament | Joshua 1:9)

It becomes more than apparent that -

I the Lord have spoken, I have spoken, and I excuse not myself; and though the heavens and the earth pass away, my word shall not pass away, but shall all be fulfilled, whether by mine own voice or by the voice of my servants, it is the same." (Doctrine and Covenants | Section 1:38)

Whether it came from the Lord or the mouth of His servant, it was the same charge to Joshua, to "be strong of and of a good courage" - Why? for in all cases he promises that "thy God is with thee".

Is not this same charge and promise given to all those that God calls?