"But is there no danger even in leading public prayer during
congregational worship? Indeed so, for the one who prays probably
will find it no simple matter not to remember the many critical
ears listening. It is too easy to desire to be regarded as a highly
“spiritual” person, who enjoys exalted communion with God. Perhaps
the worst form of pride is the desire to appear humble. One must
examine his heart to determine whether his prayer would be simpler
and shorter were he praying alone with God and whether the manner
or content of his prayer is being affected by those who listen. This
must never be construed as forbidding public praying for others as
an expression of their common prayer. The Lord's word, applied to
this situation not immediately intended by His warning, remains a
warning to the individual who is called upon to pray in congregational
worship, that he, on behalf of the congregation, place sincere
petitions before God." - Harold Fowler