Obedience is Better Than Sacrifice.. 1Sam15

Saul thought he had won a great victory over the amalekites, but God saw it as a great failure because Saul had disobey HIM and then lied to Samuel about the result of the battle. Saul may have thought his lie wouldnt be detected, or that he did was not wrong, Saul was deceiving himself.

Dishonest people soon begin to believe your own lies, you deceive yourself, you alienate yourself from God, and you lose credibility in all your relationships, in the long run, honesty wins out.

Obedience is better than sacrifice, was Samuel saying that sacrifice is unimportant?

No, he was urging Saul to look at his reasons for making the sacrifice itself. A sacrifice was a ritual transaction between a person and God that physically demonstrated a relationship between them. But if the person's heart was not trully repentant or if he did not trully love God, the sacrifice was a hollow ritual. Religious ceremonies or rituals are empty unless they are performed with an attitude of love and obedience.

Being religious (going to church, serving a committee, giving to charity) is not enough if we do not act out of devotion and obedience to God.