King James Version
But when ye pray, use not vain repetitions, as the heathen do: for they think that they shall be heard for their much speaking.English Standard Version
"And when you pray, do not heap up empty phrases as the Gentiles do, for they think that they will be heard for their many words.Catholic Public Domain Version
And when praying, do not choose many words, as the pagans do. For they think that by their excess of words they might be heeded