What does the Bible say about the purpose of prayer?

According to scripture, the primary purpose of prayer is worship, as seen in the preaching of Mike McInnis. Ignoring this fact leads to ineffective prayer, which aligns with James 4:3, stating, 'You ask and do not receive, because you ask with wrong motives, so that you may spend it on your pleasures.' True prayer should extoll the glory of God rather than simply making requests. Therefore, prayer serves as a testimony to God's omnipotence, reinforcing the idea that we pray to a God who is fully capable of granting our requests according to His will.