Adino was one of David’s three chief warriors. The other two were Eleazar and Shammah. He was a chief among the captains. He once lifted his spear against eight hundred whom he slew at one time (2 Samuel 23:8). Adino was a loyal soldier of king David. Once, during harvest time, when David was in the cave at Adullam, the Philistines had their garrison in Bethlehem and pitched their troops in the valley of Rephaim (giants). David desired to drink from the well of Bethlehem. When Adino and the other two heard of the kings desire, they fought the army of the Philistines, and drew water from the well of Bethlehem and brought it back to David. David equates the water to the blood of Adino and the other two warriors and refuses to drink it because these men jeopardized their very lives for fulfilling the desire of their king. (2 Samuel 23:13-17)

What can we learn from Adino?
We must be like Adino, willing to go behind enemy lines, breaking through the troops of the enemy (the devil), even if it seems gigantic, jeopardizing our lives to fulfill the desires of the King of kings and Lord of lords, Jesus Christ. It is the God’s desire that none perish (2 Peter 3:9). In other words, it is God’s desire that all drink the living water that flows from him, the God who made himself of no reputation and took the form of a man, born in Bethlehem, so that all may have life, life abundant and eternal.

2 Samuel 23:8, 13-17 (KJV)
8
These be the names of the mighty men whom David had: The Tachmonite that sat in the seat, chief among the captains; the same was Adino the Eznite: he lift up his spear against eight hundred, whom he slew at one time.

13
And three of the thirty chief went down, and came to David in the harvest time unto the cave of Adullam: and the troop of the Philistines pitched in the valley of Rephaim.

14 And David was then in an hold, and the garrison of the Philistines was then in Bethlehem.
15 And David longed, and said, Oh that one would give me drink of the water of the well of Bethlehem, which is by the gate!
16 And the three mighty men brake through the host of the Philistines, and drew water out of the well of Bethlehem, that was by the gate, and took it, and brought it to David: nevertheless he would not drink thereof, but poured it out unto the LORD.
17 And he said, Be it far from me, O LORD, that I should do this: is not this the blood of the men that went in jeopardy of their lives? therefore he would not drink it. These things did these three mighty men.