Example of using Church Content plugin field_overrides. http://churchthemes.com/guides/developer/church-content/

ctc-field-overrides.php

<?php

'field_overrides' => array(
    '_ctc_person_urls' => array(
        'name' => __( 'New Title', 'yourtheme' ),
        'desc' => __( 'Enter one URL per line.', 'yourtheme' )
    ),
    '_ctc_person_email' => array(
        'desc' => sprintf( __( 'The WordPress <a href="%s" target="_blank">antispambot</a> function is used to help deter automated email harvesting.', 'yourtheme' ), 'http://codex.wordpress.org/Function_Reference/antispambot' )
    )
)