Seven days shalt thou tarry - I will come to thee within seven days, offer sacrifices, receive directions from the Lord, and deliver them to thee. It is likely that these seven days referred to the time in which Samuel came to Saul to Gilgal, offered sacrifices, and confirmed the kingdom to him, after he had defeated the Ammonites. See 1 Samuel 11:14, 1 Samuel 11:15.

back [heb] shoulder
gave [heb] turned
another heart

1 Samuel 10:6 And the Spirit of the LORD will come on you, and you shall prophesy with them, and shall be turned into another man.

and all those signs The following history of Saul is given by the Afghans, a people generally supposed to be of Jewish origin: In a war which raged between the children of Israel and the Amalekites, the latter being victorious, plundered the Jews, and obtained possession of the ark of the covenant. Considering this [as] the God of the Jews, they threw it into the fire, which did not affect it. They afterwards attempted to cleave it with axes, but without success: every individual who treated it with indignity, was punished for his temerity. They then placed it in their temple; but all their idols bowed to it. At length they fastened it upon a cow, which they turned loose in the wilderness. When the prophet Samuel arose, the children of Israel said to him, ` We have been totally subdued by the Amalekites, and have no king. Raise to us a king, that we may be enabled to contend for the glory of God.' Samuel said, `In case you are led out to battle, are you determined to fight?' They answered, `What has befallen us, that we should not fight against infidels. That nation has banished us from our country and children.' At this time the angel Gabriel descended, and delivering a wand, said, `It is the command of God, that the person whose stature shall correspond with this wand, shall be king of Israel. Melec Tdlut was at that time a man of inferior condition, and performed the humble employment of feeding the goats and cows of others. One day, a cow under his charge was accidentally lost. Being disappointed in his searches, he was greatly distressed, and applied to Samuel saying, `I have lost a cow, and I do not possess the means of satisfying the owner. Pray for me that I may be extricated from this difficulty.' Samuel perceiving that he was a man of lofty stature, asked his name. He answered, Talut. Samuel then said, `Measure Talut with the wand which the angel Gabriel brought.' His stature was equal to it. Samuel then said, `God had raised Talut to be your king.' The children of Israel answered, `We are greater than our king. We are men of dignity, and he is of inferior condition. How shall he be our king?' Samuel informed them, they should know that God had constituted Talut king, by his restoring the ark of the covenant. He accordingly restored it, and they acknowledged him their sovereign. Asiatic Researches, vol. ii. p.

119, et seq

1 Samuel 10:2-5 When you are departed from me to day, then you shall find two men by Rachel's sepulcher in the border of Benjamin at Zelzah...

Judges 6:21,36-40 Then the angel of the LORD put forth the end of the staff that was in his hand, and touched the flesh and the unleavened cakes...

Judges 7:11 And you shall hear what they say; and afterward shall your hands be strengthened to go down to the host...

Isaiah 38:7,8 And this shall be a sign to you from the LORD, that the LORD will do this thing that he has spoken...

Mark 14:16 And his disciples went forth, and came into the city, and found as he had said to them: and they made ready the passover.

The Earliest Chapters in Divine Revelation
[Sidenote: The nature of inspiration] Since the days of the Greek philosophers the subject of inspiration and revelation has been fertile theme for discussion and dispute among scholars and theologians. Many different theories have been advanced, and ultimately abandoned as untenable. In its simplest meaning and use, inspiration describes the personal influence of one individual upon the mind and spirit of another. Thus we often say, "That man inspired me." What we are or do under the influence …
Charles Foster Kent—The Origin & Permanent Value of the Old Testament