Yes, the lines you quoted in your question are actually present in original Devi Bhagavata Purana. The passage is a translation of Shloka no. 88 -Chapter4 - Book 9. Below is the original Sanskrit shloka.
गुरुमभ्यर्च्य विधिवद्वस्त्रालङ्कारचन्दनैः । प्रणम्य दण्डवद्भूमौ
कवचं धारयेत्सुधीः ॥ 88 ॥
One is worship one’s spiritual Teacher (Guru Deva) ...