The King James Version uses the words grumble and grumbling, while the English Standard Version uses the words murmur and murmuring. Whichever version is fine, because the words murmur and grumble are one and the same according to the Thesaurus. According to the Bible, they are both despised by the LORD. Please read one of the best examples of it in Exodus chapter 16:1 thru Exodus chapter 17:7
For the King James Version
Exodus 16-17:7 KJV
For the English Standard Version
Exodus 16-17:7 ESV
David Wilkerson does an excellent job in the following short article about the evils of murmuring and complaining:
In the days ahead, as we trudge through the PreTribulation period awaiting the Rapture, there will be many reasons to murmur and grumble. The question is, “Do we have a right to murmur and grumble?” God makes it clear that we DO NOT!
Neither let us tempt Christ, as some of them also tempted, and were destroyed of serpents [Numbers 21:5-6]. Neither murmur ye, as some of them also murmured, and were destroyed of the destroyer [Numbers 14:2-4, 29-37]. Now all these things happened unto them for ensamples: and they are written for our admonition, upon whom the ends of the world are come. (1 Corinthians 10:9-11 KJV)
God looks at murmuring and grumbling as lack of faith. Instead, we are to are to rise above that and conduct ourselves according to the following Scriptures:
But the fruit of the Spirit is love, joy, peace, longsuffering, gentleness, goodness, faith, meekness, temperance: against such there is no law. And they that are Christ’s have crucified the flesh with the affections and lusts. If we live in the Spirit, let us also walk in the Spirit. (Galatians 5:22-25 KJV)
In this you rejoice, though now for a little while, if necessary, you have been grieved by various trials, so that the tested genuineness of your faith—more precious than gold that perishes though it is tested by fire—may be found to result in praise and glory and honor at the revelation of Jesus Christ. Though you have not seen Him, you love Him. Though you do not now see Him, you believe in Him and rejoice with joy that is inexpressible and filled with glory, obtaining the outcome of your faith, the salvation of your souls. (1 Peter 1:6-9 ESV)
Annointing 