"Prayerful support" refers to showing care and concern for someone by offering prayers for them. It means intending well for someone's well-being through the power of prayer. Full definition
My plan was to provide prayerful support regardless of his policies, some of which I agree with and some of which I don't.» (religion.blogs.cnn.com)
All of their work takes place in the context of strong financial and prayerful support from local individuals, the majority of whom are members of churches in Luton and its surrounding towns. (premierchristianity.com)
In what follows we see power over all enemies, the prayerful support of all his people, repeated emphasis on concern for the needy, the weak, those who have no helper, and once again «abundance of grain in the land» (v. 16). (religion-online.org)