1 Corinthians 1:17

For Christ sent me not to baptize, but to preach the gospel: not with wisdom of words, lest the cross of Christ should be made of none effect. {words: or, speech}

1 Corinthians 2:4

And my speech and my preaching {was} not with enticing words of man's wisdom, but in demonstration of the Spirit and of power: {enticing: or, persuasible}

1 Corinthians 2:13

Which things also we speak, not in the words which man's wisdom teacheth, but which the Holy Ghost teacheth; comparing spiritual things with spiritual.

Romans 16:18

For they that are such serve not our Lord Jesus Christ, but their own belly; and by good words and fair speeches deceive the hearts of the simple.

Exodus 4:10

And Moses said unto the LORD, O my Lord, I {am} not eloquent, neither heretofore, nor since thou hast spoken unto thy servant: but I {am} slow of speech, and of a slow tongue. {eloquent: Heb. a man of words} {heretofore: Heb. since yesterday, nor since the third day}

2 Timothy 1:8

Be not thou therefore ashamed of the testimony of our Lord, nor of me his prisoner: but be thou partaker of the afflictions of the gospel according to the power of God;

Jeremiah 1:6-7

Then said I, Ah, Lord GOD! behold, I cannot speak: for I {am} a child.

1 John 5:11-13

And this is the record, that God hath given to us eternal life, and this life is in his Son.