Jìngjū 靜居 (active mid-late 9th c.), Tang Buddhist monk of the Dà-ān-guó-sì 大安國寺 in Cháng’ān, the imperial-foundation monastery built under Tang Ruìzōng 睿宗 in Jǐng-yún 景雲 1 (710). Known only from his single attested work, the [[KR6e0026|Huáng-dì jiàng-dàn rì yú Lín-dé-diàn jiǎng Dà fāngguǎng fó huáyán jīng xuán yì yī bù]] 皇帝降誕日於麟德殿講大方廣佛華嚴經玄義一部 (T1743), a doctrinal lecture on the Avataṃsaka delivered at the Lín-dé Hall (麟德殿) of the Dà-míng Palace 大明宮 on the occasion of an unspecified Tang emperor’s birthday — the title’s huáng-dì jiàng-dàn rì 皇帝降誕日 (“the day on which the emperor descended into birth”). On the basis of style, doctrinal content, and the reference to “Lín-dé-diàn” (active in this function in the second half of the ninth century), the lecture is conventionally placed in the reign of Yì-zōng 懿宗 (859–873) or Xī-zōng 僖宗 (873–888); no closer dating is available.
Jìngjū’s lecture follows the schema of the new (80-fascicle) [[KR6e0010|Huáyán jīng]] in 7 places, 9 assemblies, 39 chapters across 80 fascicles, and is in this respect a direct heir of 澄觀 Chéngguān’s exegetical tradition. He has no DILA authority entry; the Sòng gāosēng zhuàn and the standard biographical sources do not preserve a separate biographical notice. His Líndédiàn lecture is one of the few extant Tang imperial-court Buddhist sermons.