Thus, when Saul looked upon David, and compared him with Goliath, he judged rightly when he said, "Thou art not able to go against this Philistine to fight with him: for thou art but a youth, and he a man of war from his youth." It was a comparison of flesh with flesh, and, as such, it was quite correct. To compare a stripling with a giant would leave little room for hesitation as to the issue of the conflict; but he ought to have compared the strength of Goliath with that of the God of the armies of Israel. This was what David did. "And David said unto Saul, Thy servant kept his father's sheep, and there came a lion and a bear, and took a lamb out of the flock: and I went out after him, and smote him, and delivered it out of his mouth: and when he arose against me, I caught him by his beard, and smote him, and slew him. Thy servant slew both the lion and the bear: and this uncircumcised Philistine shall be as one of them, seeing he hath defied the armies of the living God." This was the argument of faith. The hand that had delivered from one difficulty would deliver from another. There is no "if" in all this. David did not wait for a sign; he simply said, "_Thy servant will go_." David had felt the power of God's presence with him in secret before he came forth to present himself in public as the servant of God and of Israel. As another has remarked, David had not boasted of his triumph over the lion and the bear; no one seemed to have heard of it before; nor would he probably have spoken of it, had it not been for the purpose of showing what a solid ground of confidence he had in reference to the great work on which he was about to enter. He would fain show that it was not in his own strength he was going forth. So was it in the matter of Paul's rapture to the third heaven: for fourteen years had that circumstance remained buried as a secret with the apostle, nor would he have divulged it, had not the carnal reasonings of the Corinthians compelled him to do so. Now, both these cases are full of practical instruction for us. With the majority of us, alas, there is too great a readiness to talk of our doings, or, at least, to think much of them. The flesh is prone to glory in anything that might exalt _self_; and if the Lord, despite of the evil in us, has accomplished any little service by our instrumentality, how speedily is it communicated in a spirit of pride and self-complacency. It is all right to speak of the Lord's grace, and to have our hearts filled with thankful adoration because of it; but this is very different from boasting of things connected with self.