As the sons of Jesse passed before Samuel, he would have selected Eliab, who was of high stature, and dignified appearance, but the angel of God stood by him to guide him in the important decision, and instructed him that he should not judge from appearance. Eliab did not fear the Lord. His heart was not right with God. He would make a proud, exacting ruler. None were found among the sons of Jesse but David, the youngest, whose humble occupation was that of tending sheep. He had filled the humble office of shepherd with such faithfulness and courage that God selected him to be captain of his people. In course of time, he was to change his shepherd’s crook for the sceptre (Spiritual Gifts 4a:77, 78).
God selected David, a humble shepherd, to rule His people. He was strict in all the ceremonies connected with the Jewish religion, and he distinguished himself by his boldness and unwavering trust in God. He was remarkable for his fidelity and reverence. His firmness, humility, love of justice, and decision of character, qualified him to carry out the high purposes of God, to instruct Israel in their devotions, and to rule them as a generous and wise monarch.
His religious life was sincere and fervent. It was while David was thus true to God, and possessing these exalted traits of character, that God calls him a man after His own heart (Spiritual Gifts 4a:85, 86).
The great honor conferred upon David did not serve to elate him. Notwithstanding the high position which he was to occupy, he quietly continued his employment, content to await the development of the Lord’s plan in His own time and way. As humble and modest as before his anointing, the shepherd boy returned to the hills and watched and guarded his flocks as tenderly as ever....
David, in the beauty and vigor of his young manhood, was preparing to take a high position with the noblest of the earth. His talents, as precious gifts from God, were employed to extol the glory of the divine Giver. His opportunities of contemplation and meditation served to enrich him with that wisdom and piety that made him beloved of God and angels.... The love that moved him, the sorrows that beset him, the triumphs that attended him, were all themes for his active thought; and as he beheld the love of God in all the providences of his life, his heart throbbed with more fervent adoration and gratitude, his voice rang out in richer melody, his harp was swept with more exultant joy; and the shepherd boy proceeded from strength to strength, from knowledge to knowledge; for the Spirit of the Lord was upon him (Patriarchs and Prophets, 641, 642). LHU 199
The first neglect of prayer and Bible study makes easier the second neglect. The first resistance to the Spirit’s pleading prepares the way for the second resistance. Thus the heart is hardened, and the conscience seared. Pr 271
"Then Samuel took the horn of oil, and anointed him in the midst of his brethren: and the Spirit of the Lord came upon David from that day forward. So Samuel rose up, and went to Ramah." 1 Samuel 16:13King James Version (KJV)