Why do people murmur? What causes them to get so frustrated to the point where they would publicly discuss their disappointment with their circumstances? The Bible provides several reasons. In Jude 16, the Bible says that people complain or murmur because they are “walking after their own lusts.” In John chapter 6, the Lord Jesus indicated another reason why an individual might complain. When the Lord knew that His disciples murmured within themselves, He asked them if they were offended (John 6:61). In other words, people murmur when things turn out differently than they had hoped. It is not so much the trial that bothers them but the offense to their self-will.
Some have misapplied today’s verse to suggest that God is bound to financially give to those who financially give to Him. Some false teachers have used verses like Luke 6:38 to suggest that a man who gives to God will have his gift restored sevenfold. This seems to be the ploy of most televangelists. Giving to God's work is not a magical formula guaranteeing personal enrichment. In fact, a Christian who sacrificially gives to the Lord may lose his job. He may give to the Lord only to incur some major unexpected expense. Yet, the Christian can be sure that he will never give to the Lord without receiving a resultant blessing from God. Far too many times, we seem to blame God for any bad that may follow but fail to recognize the delayed blessings that are sure to follow obedience. The Lord promises that we will never give to Him without Him giving back to us. Rest assured that you cannot and will not ever out give God.