God himself declares about the glory of devotion in Bhagwat Gita: Chapter Eighteen verse 65 & 66 which are here given below.
Bhagwat Gita: Chapter Eighteen verse 65:
"man-mana bhava mad-bhakto
mad-yaji mam namaskuru
mam evaishyasi satyam te
pratijane priyo ’si me" (Bhagwat Gita: Chapter Eighteen verse 65)
"Sri Krishna says to Arjuna: Always think of Me, become My devotee, worship Me and offer your homage unto Me. Thus you will come to Me without fail. I promise you this because you are My very dear friend."
Bhagwat Gita: Chapter Eighteen verse 66:
mam ekam saranam vraja
aham tvam sarva-papebhyo
mokshayisyami ma suchah" (Bhagwat Gita: Chapter Eighteen verse 66)
"Sri Krishna says to Arjuna: Abandon all varieties of religion and just surrender unto Me. I shall deliver you from all sinful reactions. Do not fear."
Also as per (Bhagwat Gita: Chapter XII verse 8) God says that:
"Fix Your mind on Me (God) and establish your reasoning in Me (God) alone; thereafter doing so you shall abide in Me (God) only. There is no doubt about it."
So as per assurance given by God in Bhagwat Gita, Lets all be devotees of God only & let's pray for Him (God) daily. So lets have devotion in God. Let's all worship the God so that He can protect us always.
Jai Sri Krishna